$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Command.git /var/lib/mock/f39-build-1439546-32263/root/chroot_tmpdir/scmroot/perl-Test-Command
Cloning into '/var/lib/mock/f39-build-1439546-32263/root/chroot_tmpdir/scmroot/perl-Test-Command'...
$ git fetch origin 6f1e819813ebec2255e4868f3815c9a564ab34da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Command
 * [new ref]         6f1e819813ebec2255e4868f3815c9a564ab34da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f1e819 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild