$ git clone -n https://src.fedoraproject.org/rpms/imhex.git /var/lib/mock/f39-build-2547356-61806/root/chroot_tmpdir/scmroot/imhex
Cloning into '/var/lib/mock/f39-build-2547356-61806/root/chroot_tmpdir/scmroot/imhex'...
$ git fetch origin c47f3f15e1848632b87150edca127e16022f4bc9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/imhex
 * [new ref]         c47f3f15e1848632b87150edca127e16022f4bc9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c47f3f1 update to 1.33.1