Fixed a bug in GUID comparisons for configuration plugins (#578)

app/MindWork AI Studio/Plugins/configuration/plugin.lua

@@ -3,6 +3,7 @@ require("icon")
 -- ------
 -- This is an example of a configuration plugin. Please replace
 -- the placeholders and assign a valid ID.
+-- All IDs should be lower-case.
 -- ------
 
 -- The ID for this plugin:
@@ -97,9 +98,7 @@ CONFIG["SETTINGS"] = {}
 
 -- Configure the preselected profile.
 -- It must be one of the profile IDs defined in CONFIG["PROFILES"].
--- Be aware that the ID must be using the same casing as defined in the profile.
+-- Please note: using an empty string ("") will lock the preselected profile selection, even though no valid preselected profile is found.
--- When the ID is using upper case letters, but using lower case letters in this
--- setting, the preselection will not work.
 -- CONFIG["SETTINGS"]["DataApp.PreselectedProfile"] = "00000000-0000-0000-0000-000000000000"
 
 -- Example chat templates for this configuration:

app/MindWork AI Studio/Settings/ManagedConfiguration.Parsing.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Globalization;
 using System.Linq.Expressions;
 
@@ -153,6 +154,34 @@ public static partial class ManagedConfiguration
         Guid configPluginId,
         LuaTable settings,
         bool dryRun)
+    {
+        return TryProcessConfiguration(configSelection, propertyExpression, string.Empty, configPluginId, settings, dryRun);
+    }
+
+    /// <summary>
+    /// Attempts to process the configuration settings from a Lua table for string values.
+    /// </summary>
+    /// <remarks>
+    /// When the configuration is successfully processed, it updates the configuration metadata with the configured value.
+    /// Furthermore, it locks the managed state of the configuration metadata to the provided configuration plugin ID.
+    /// The setting's value is set to the configured value.
+    /// </remarks>
+    /// <param name="configuredType">Parameter type of the configuration entry.</param>
+    /// <param name="configPluginId">The ID of the related configuration plugin.</param>
+    /// <param name="settings">The Lua table containing the settings to process.</param>
+    /// <param name="configSelection">The expression to select the configuration class.</param>
+    /// <param name="propertyExpression">The expression to select the property within the configuration class.</param>
+    /// <param name="dryRun">When true, the method will not apply any changes, but only check if the configuration can be read.</param>
+    /// <typeparam name="TClass">The type of the configuration class.</typeparam>
+    /// <typeparam name="TDataType">The data type of the configured value.</typeparam>
+    /// <returns>True when the configuration was successfully processed, otherwise false.</returns>
+    public static bool TryProcessConfiguration<TClass, TDataType>(
+        Expression<Func<Data, TClass>> configSelection,
+        Expression<Func<TClass, string>> propertyExpression,
+        TDataType configuredType,
+        Guid configPluginId,
+        LuaTable settings,
+        bool dryRun)
     {
         //
         // Handle configured string values
@@ -171,8 +200,20 @@ public static partial class ManagedConfiguration
             // Step 2 -- try to read the Lua value as a string:
             if(configuredTextValue.TryRead<string>(out var configuredText))
             {
-                configuredValue = configuredText;
+                switch (configuredType)
-                successful = true;
+                {
+                    // Case: the read string is a Guid:
+                    case Guid:
+                        successful = Guid.TryParse(configuredText, out var id);
+                        configuredValue = successful ? id.ToString().ToLowerInvariant() : configuredText;
+                        break;
+                    
+                    // Case: the read string is just a string:
+                    case string:
+                        configuredValue = configuredText;
+                        successful = true;
+                        break;
+                }
             }
         }
         

app/MindWork AI Studio/Settings/SettingsManager.cs

@@ -263,7 +263,7 @@ public sealed class SettingsManager
         if (preselection != Profile.NO_PROFILE)
             return preselection;
         
-        preselection = this.ConfigurationData.Profiles.FirstOrDefault(x => x.Id == this.ConfigurationData.App.PreselectedProfile);
+        preselection = this.ConfigurationData.Profiles.FirstOrDefault(x => x.Id.Equals(this.ConfigurationData.App.PreselectedProfile, StringComparison.InvariantCultureIgnoreCase));
         return preselection ?? Profile.NO_PROFILE;
     }
     
@@ -273,7 +273,7 @@ public sealed class SettingsManager
         if (preselection != ChatTemplate.NO_CHAT_TEMPLATE)
             return preselection;
         
-        preselection = this.ConfigurationData.ChatTemplates.FirstOrDefault(x => x.Id == this.ConfigurationData.App.PreselectedChatTemplate);
+        preselection = this.ConfigurationData.ChatTemplates.FirstOrDefault(x => x.Id.Equals(this.ConfigurationData.App.PreselectedChatTemplate, StringComparison.InvariantCultureIgnoreCase));
         return preselection ?? ChatTemplate.NO_CHAT_TEMPLATE;
     }
 

app/MindWork AI Studio/Tools/PluginSystem/PluginConfiguration.cs

@@ -77,7 +77,7 @@ public sealed class PluginConfiguration(bool isInternal, LuaState state, PluginT
         PluginConfigurationObject.TryParse(PluginConfigurationObjectType.PROFILE, x => x.Profiles, x => x.NextProfileNum, mainTable, this.Id, ref this.configObjects, dryRun);
         
         // Config: preselected profile?
-        ManagedConfiguration.TryProcessConfiguration(x => x.App, x => x.PreselectedProfile, this.Id, settingsTable, dryRun);
+        ManagedConfiguration.TryProcessConfiguration(x => x.App, x => x.PreselectedProfile, Guid.Empty, this.Id, settingsTable, dryRun);
         
         message = string.Empty;
         return true;

app/MindWork AI Studio/wwwroot/changelog/v0.9.55.md

@@ -1,2 +1,3 @@
 # v0.9.55, build 230 (2025-12-xx xx:xx UTC)
-- Added support for newer Mistral models (Mistral 3, Voxtral, and Magistral)
+- Added support for newer Mistral models (Mistral 3, Voxtral, and Magistral).
+- Improved the ID handling for configuration plugins.