git-tabs remembers the tabs you have open with each git repository branch.
If you open tabs
A,B,C on the master branch then switch to develop and close
B,C and open tabs
X,Y,Z. When you switch to
master it will reopen tabs
A,B,C. Upon switching to the develop branch only tabs
A,X,Y,Z will be open.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.