$ git clone -n https://src.fedoraproject.org/rpms/mousepad.git /var/lib/mock/f41-build-846580-163122/root/chroot_tmpdir/scmroot/mousepad
Cloning into '/var/lib/mock/f41-build-846580-163122/root/chroot_tmpdir/scmroot/mousepad'...
$ git fetch origin 600b3b0cc6b843602d24e94953a3c37168a1a6a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mousepad
 * [new ref]         600b3b0cc6b843602d24e94953a3c37168a1a6a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 600b3b0 Rebuild against gspell