$ git clone -n https://src.fedoraproject.org/rpms/perl-Acme-Alien-DontPanic.git /var/lib/mock/f39-build-1663477-40679/root/chroot_tmpdir/scmroot/perl-Acme-Alien-DontPanic
Cloning into '/var/lib/mock/f39-build-1663477-40679/root/chroot_tmpdir/scmroot/perl-Acme-Alien-DontPanic'...
$ git fetch origin 4d1bc0d419da5ffda58251724475a5fa08206fb7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Acme-Alien-DontPanic
 * [new ref]         4d1bc0d419da5ffda58251724475a5fa08206fb7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d1bc0d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild