SAM@USER MINGW64 ~/openmrs-module-adminui (RA-995)
$ git pull --rebase upstream master
From https://github.com/openmrs/openmrs-module-adminui
 * branch            master     -> FETCH_HEAD
Current branch RA-995 is up to date.

SAM@USER MINGW64 ~/openmrs-module-adminui (RA-995)
$ git push origin RA-995
Username for 'https://github.com': samuelmale
To https://github.com/samuelmale/openmrs-module-adminui
 ! [rejected]        RA-995 -> RA-995 (non-fast-forward)
error: failed to push some refs to 'https://github.com/samuelmale/openmrs-module-adminui'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Integrate the remote changes (e.g.
hint: 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.