Update on the sequence of operations performed:

1)- User A: do a clone from repository ( pbl + exported files )

2)- User B: do a clone from repository ( pbl + exported files )

3)- User A: modify code

4)- User A: execute a COMMIT

5)- User B: modify code

6)- User B: execute a COMMIT;

7)- User B: execute a PUSH;

8)- User A: execute a PULL;

9)- User A: execute a PUSH;

The result is:

In Step '9' we have a merge.

Powerbuilder send to the repo all modified objects ( step '3' and in commit on step '4' ) + all objects downloaded at step '8' + PBL.

IT'S VERY STRANGE 

Native git integration has option to upload PBL files. This ensures that your version control repo includes your library list files. Using "legacy" source control you had to perform "Get Latest Version" twice whenever someone else added a PBL file to the library list.

AND - Icon assigned to your application object and the fonts defined for the application are stored in the PBL file but not in the exported application object. So you must include that PBL file to keep such config under source control.

HTH /Michael