Keep application tab settings out of the INI file

Fixes a regression caused by c2c282d

Author: rdipardo

Source/Plugin/Src/Config.pas

@@ -187,8 +187,11 @@ procedure TConfiguration.SaveToConfigFile;
     configINI.WriteBool(CONFIG_FSI_SECTION_NAME, CONFIG_FSI_SECTION_PASS_ARGS_TO_DOTNET_FSI, _passArgsToDotnetFsi);
     configINI.WriteString(CONFIG_FSI_SECTION_NAME, CONFIG_FSI_SECTION_BINARY_KEY_NAME, _fsiPath);
     configINI.WriteString(CONFIG_FSI_SECTION_NAME, CONFIG_FSI_SECTION_BINARYARGS_KEY_NAME, _fsiArgs);
-    configINI.WriteBool(CONFIG_FSIEDITOR_SECTION_NAME, CONFIG_FSIEDITOR_SECTION_TABTOSPACES_KEY_NAME, _convertTabsToSpacesInFSIEditor);
-    configINI.WriteInteger(CONFIG_FSIEDITOR_SECTION_NAME, CONFIG_FSIEDITOR_SECTION_TABLENGTH_KEY_NAME, _tabLength);
+    if not TryParseTabSettings(TabPrefValue) then
+    begin
+      configINI.WriteBool(CONFIG_FSIEDITOR_SECTION_NAME, CONFIG_FSIEDITOR_SECTION_TABTOSPACES_KEY_NAME, _convertTabsToSpacesInFSIEditor);
+      configINI.WriteInteger(CONFIG_FSIEDITOR_SECTION_NAME, CONFIG_FSIEDITOR_SECTION_TABLENGTH_KEY_NAME, _tabLength);
+    end;
     configINI.WriteBool(CONFIG_FSIEDITOR_SECTION_NAME, CONFIG_FSIEDITOR_ECHO_NPP_TEXT_KEY_NAME, _echoNPPTextInEditor);
     configINI.WriteInteger(CONFIG_FSIEDITOR_SECTION_NAME, 'TEXT_COLOR', ColorToRGB(_clStdOut));
     configINI.WriteInteger(CONFIG_FSIEDITOR_SECTION_NAME, 'ERROR_TEXT_COLOR', ColorToRGB(_clStdErr));