$ git clone -n https://src.fedoraproject.org/rpms/AusweisApp2.git /var/lib/mock/f40-build-1250134-22986/root/chroot_tmpdir/scmroot/AusweisApp2
Cloning into '/var/lib/mock/f40-build-1250134-22986/root/chroot_tmpdir/scmroot/AusweisApp2'...
$ git fetch origin 22705cb3b9a239d1c96e0448bb1379dd5c71bc5c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/AusweisApp2
 * [new ref]         22705cb3b9a239d1c96e0448bb1379dd5c71bc5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22705cb Merge branch 'rawhide' into f40