$ git clone -n https://src.fedoraproject.org/rpms/gambas3.git /var/lib/mock/f42-build-3459845-45515/root/chroot_tmpdir/scmroot/gambas3
Cloning into '/var/lib/mock/f42-build-3459845-45515/root/chroot_tmpdir/scmroot/gambas3'...
$ git fetch origin 16ec7683e07ae9b779693ff5a4721856ba1ec198:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gambas3
 * [new ref]         16ec7683e07ae9b779693ff5a4721856ba1ec198 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16ec768 Bump build for fixed Qt rebase