$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-tcl.git /var/lib/mock/f40-build-2573492-62241/root/chroot_tmpdir/scmroot/golang-modernc-tcl
Cloning into '/var/lib/mock/f40-build-2573492-62241/root/chroot_tmpdir/scmroot/golang-modernc-tcl'...
$ git fetch origin 083dd2732ca024cecf638b4343c31af28e14acd8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-tcl
 * [new ref]         083dd2732ca024cecf638b4343c31af28e14acd8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 083dd27 Rebuild for golang 1.22.0