$ git clone -n https://src.fedoraproject.org/rpms/perl-Mo.git /var/lib/mock/f39-build-1485809-34461/root/chroot_tmpdir/scmroot/perl-Mo
Cloning into '/var/lib/mock/f39-build-1485809-34461/root/chroot_tmpdir/scmroot/perl-Mo'...
$ git fetch origin aca85fb22fb331194105d67f082d9f46d1dddb1a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mo
 * [new ref]         aca85fb22fb331194105d67f082d9f46d1dddb1a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aca85fb Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild