[Plugin Installer] Fixes #8244 (crash on closing http request)

Author: borysiasty

python/pyplugin_installer/installer_data.py

@@ -386,7 +386,7 @@ def fetchingInProgress(self):
   # ----------------------------------------- #
   def killConnection(self, key):
     """ kill the fetching on demand """
-    if self.mRepositories[key]["xmlData"] and self.mRepositories[key]["xmlData"].isRunning():
+    if self.mRepositories[key]["state"]==1 and self.mRepositories[key]["xmlData"] and self.mRepositories[key]["xmlData"].isRunning():
       self.mRepositories[key]["xmlData"].finished.disconnect()
       self.mRepositories[key]["xmlData"].abort()