The stats bar does not update after changing a group.

Steps to reproduce:

1. Go to URL

Observed:
I. Stats bar indicates: 95% translated, 2% proodread

2. Open the group selector
3. Search for "compount"
4. Select "Semantic Compound Queries". This is a group with 1 message.

Obseved:
II. Stats bar indicates: 95% translated, 2% proodread. The stats bar has not been updated.

Expected:
III. The stats bar is updated and shows stats for the group "Semantic Compound Queries"

Version: master
Severity: normal
URL: https://translatewiki.net/w/i.php?title=Special:Translate&group=out-fuel-desktop&language=nl&tux=1&action=proofread