$ git clone -n https://src.fedoraproject.org/rpms/evince.git /var/lib/mock/f41-build-846083-162958/root/chroot_tmpdir/scmroot/evince
Cloning into '/var/lib/mock/f41-build-846083-162958/root/chroot_tmpdir/scmroot/evince'...
$ git fetch origin 0a6d82c349dfb339230364368dbe0692f44ff23b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evince
 * [new ref]         0a6d82c349dfb339230364368dbe0692f44ff23b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a6d82c Rebuild against gspell