fix: preserve version selection when loading more releases

When clicking 'Load more...' to fetch additional releases, the version
dropdown would show a blank selection after removing the 'Load more...'
item and adding new versions.

This fix saves the current selection index before removing the last item
and restores it after adding new releases, ensuring the user's selected
version remains visible during pagination.

Author: al3rez

pupgui2/pupgui2installdialog.py

@@ -91,6 +91,8 @@ def _threadupdate_releases_thread():
             if self.loaded_page == 1:
                 self.ui.comboCompatToolVersion.clear()
             else:
+                # Save the current selection before removing "Load more..."
+                current_index = self.ui.comboCompatToolVersion.currentIndex()
                 self.ui.comboCompatToolVersion.removeItem(self.ui.comboCompatToolVersion.count() - 1)
 
             vers = self.current_ct_obj['installer'].fetch_releases(count=RELEASES_PER_PAGE, page=self.loaded_page)
@@ -102,7 +104,11 @@ def _threadupdate_releases_thread():
             # Stops install dialog UI elements from being enabled when rate-limited to prevent switching/installing tools
             if len(vers) > 0:
                 self.ui.comboCompatToolVersion.addItems(vers)
-                self.ui.comboCompatToolVersion.setCurrentIndex(0)
+                if self.loaded_page == 1:
+                    self.ui.comboCompatToolVersion.setCurrentIndex(0)
+                else:
+                    # Restore the previous selection after loading more
+                    self.ui.comboCompatToolVersion.setCurrentIndex(current_index)
 
                 if self.more_releases_loadable:
                     self.ui.comboCompatToolVersion.addItem(self.tr('Load more...'))