Comment 3 for bug 1639050

In Debian, the values in debian/control are only used when the package is uploaded intially to the archive. The override entry is created from that.
Changing the contents of the archive override is done by the ftp-masters. If you later change the contents of debian/control does not have an influence on the override file.

So, this needs to be assigned to your ftp masters, they need to fix the overrides and should be able to do that in one go.