$ git clone -n https://src.fedoraproject.org/rpms/perl-Coro.git /var/lib/mock/f39-build-1440003-32301/root/chroot_tmpdir/scmroot/perl-Coro
Cloning into '/var/lib/mock/f39-build-1440003-32301/root/chroot_tmpdir/scmroot/perl-Coro'...
$ git fetch origin 4afb3af940613861a64520a3e1eac55d5a5a781b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Coro
 * [new ref]         4afb3af940613861a64520a3e1eac55d5a5a781b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4afb3af Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild