$ git clone -n https://src.fedoraproject.org/rpms/golang-github-racingmars-go3270.git /var/lib/mock/f39-build-1442727-32496/root/chroot_tmpdir/scmroot/golang-github-racingmars-go3270
Cloning into '/var/lib/mock/f39-build-1442727-32496/root/chroot_tmpdir/scmroot/golang-github-racingmars-go3270'...
$ git fetch origin efa775f436afe1f4a653c86292713908b2edfdcf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-racingmars-go3270
 * [new ref]         efa775f436afe1f4a653c86292713908b2edfdcf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at efa775f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild