$ git clone -n https://src.fedoraproject.org/rpms/gnome-commander.git /var/lib/mock/f42-build-side-1-3582393-46884/root/chroot_tmpdir/scmroot/gnome-commander
Cloning into '/var/lib/mock/f42-build-side-1-3582393-46884/root/chroot_tmpdir/scmroot/gnome-commander'...
$ git fetch origin e25944d21375571f2ea886c2bf8cff285ac81f83:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-commander
 * [new ref]         e25944d21375571f2ea886c2bf8cff285ac81f83 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e25944d 1.18.3