$ git clone -n https://src.fedoraproject.org/rpms/gmic.git /var/lib/mock/f41-build-1200324-22413/root/chroot_tmpdir/scmroot/gmic
Cloning into '/var/lib/mock/f41-build-1200324-22413/root/chroot_tmpdir/scmroot/gmic'...
$ git fetch origin 0f1ae7dcf490779996de3255a9674144f2b3899b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gmic
 * [new ref]         0f1ae7dcf490779996de3255a9674144f2b3899b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f1ae7d bump version