$ git clone -n https://src.fedoraproject.org/rpms/golang-rsc-pdf.git /var/lib/mock/f40-build-781630-131754/root/chroot_tmpdir/scmroot/golang-rsc-pdf
Cloning into '/var/lib/mock/f40-build-781630-131754/root/chroot_tmpdir/scmroot/golang-rsc-pdf'...
$ git fetch origin 9170a3a6766b215577c2cb634367dda3c9f77607:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-rsc-pdf
 * [new ref]         9170a3a6766b215577c2cb634367dda3c9f77607 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9170a3a Rebuild for golang 1.22.0