$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-io.git /var/lib/mock/f41-build-835913-158749/root/chroot_tmpdir/scmroot/gap-pkg-io
Cloning into '/var/lib/mock/f41-build-835913-158749/root/chroot_tmpdir/scmroot/gap-pkg-io'...
$ git fetch origin 055dbd74dd844af63e2d59c6ed817ad4892cd5ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-io
 * [new ref]         055dbd74dd844af63e2d59c6ed817ad4892cd5ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 055dbd7 Version 4.8.3