$ git clone -n https://src.fedoraproject.org/rpms/geany.git /var/lib/mock/f42-build-side-1-3588026-46942/root/chroot_tmpdir/scmroot/geany
Cloning into '/var/lib/mock/f42-build-side-1-3588026-46942/root/chroot_tmpdir/scmroot/geany'...
$ git fetch origin 5e3cfeee571bd3f7bbb41a06cd680d43dabed665:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/geany
 * [new ref]         5e3cfeee571bd3f7bbb41a06cd680d43dabed665 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e3cfee Introduce Obsoletes: geany-themes