When we updated the glossary item it is showing some old date as a last update by admin.
Steps to Reproduce
Go to the zanata home.
Click on Glossary from left menu panel.
You will see the list of glossaries.
Click on "i" in front of the glossary names.
Observe the last updated by admin date and timing at the bottom of the pop-up
Update name or description.
Click on update.
Observe the Last updated date and timing.
After updating the glossary info it shows old date as last updated.
If we update any of the glossary then it should have to show current date and time as last updated.
Attached screen captured for more ref.