$ git clone -n https://src.fedoraproject.org/rpms/sha2.git /var/lib/mock/f39-build-1462550-33344/root/chroot_tmpdir/scmroot/sha2
Cloning into '/var/lib/mock/f39-build-1462550-33344/root/chroot_tmpdir/scmroot/sha2'...
$ git fetch origin e2c316d6b5b9a54abaccf5674bf0674c326d02f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sha2
 * [new ref]         e2c316d6b5b9a54abaccf5674bf0674c326d02f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2c316d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild