$ git clone -n https://src.fedoraproject.org/rpms/perl-namespace-autoclean.git /var/lib/mock/f39-build-1486019-34461/root/chroot_tmpdir/scmroot/perl-namespace-autoclean
Cloning into '/var/lib/mock/f39-build-1486019-34461/root/chroot_tmpdir/scmroot/perl-namespace-autoclean'...
$ git fetch origin fb645f5d98237ab76a4e42c457c4d2ce0c4c5c18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-namespace-autoclean
 * [new ref]         fb645f5d98237ab76a4e42c457c4d2ce0c4c5c18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb645f5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild