$ git clone -n https://src.fedoraproject.org/rpms/golang-github-antihax-optional.git /var/lib/mock/f39-build-1442161-32437/root/chroot_tmpdir/scmroot/golang-github-antihax-optional
Cloning into '/var/lib/mock/f39-build-1442161-32437/root/chroot_tmpdir/scmroot/golang-github-antihax-optional'...
$ git fetch origin 334ab0537b468f424a9f437f03c22242ab2ea471:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-antihax-optional
 * [new ref]         334ab0537b468f424a9f437f03c22242ab2ea471 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 334ab05 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild