$ git clone -n https://src.fedoraproject.org/rpms/perl-Tk-Getopt.git /var/lib/mock/f39-build-1439776-32284/root/chroot_tmpdir/scmroot/perl-Tk-Getopt
Cloning into '/var/lib/mock/f39-build-1439776-32284/root/chroot_tmpdir/scmroot/perl-Tk-Getopt'...
$ git fetch origin 8466653f5b226458e7621217d3297bb1bb748d7d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Tk-Getopt
 * [new ref]         8466653f5b226458e7621217d3297bb1bb748d7d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8466653 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild