[Plugin Installer] fix #8410

Author: borysiasty

python/pyplugin_installer/installer.py

@@ -445,6 +445,7 @@ def editRepository(self, reposName):
     """ edit repository connection """
     if not reposName:
       return
+    reposName = reposName.decode( 'utf-8' )
     checkState={False:Qt.Unchecked,True:Qt.Checked}
     dlg = QgsPluginInstallerRepositoryDialog( iface.mainWindow() )
     dlg.editName.setText(reposName)
@@ -486,6 +487,7 @@ def deleteRepository(self, reposName):
     """ delete repository connection """
     if not reposName:
       return
+    reposName = reposName.decode( 'utf-8' )
     settings = QSettings()
     settings.beginGroup(reposGroup)
     if settings.value(reposName+"/url", "", type=unicode) == officialRepo[1]: