$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-gc-2.git /var/lib/mock/f40-build-1532089-23927/root/chroot_tmpdir/scmroot/golang-modernc-gc-2
Cloning into '/var/lib/mock/f40-build-1532089-23927/root/chroot_tmpdir/scmroot/golang-modernc-gc-2'...
$ git fetch origin 42aa5914915e58e8a550afb30b77649509aa6d7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-gc-2
 * [new ref]         42aa5914915e58e8a550afb30b77649509aa6d7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 42aa591 Rebuild for golang 1.22.0