$ git clone -n https://src.fedoraproject.org/rpms/perl-perlindex.git /var/lib/mock/f40-build-2020065-46590/root/chroot_tmpdir/scmroot/perl-perlindex
Cloning into '/var/lib/mock/f40-build-2020065-46590/root/chroot_tmpdir/scmroot/perl-perlindex'...
$ git fetch origin b0063c619e4d5054fd9bdce2b8b92e139df62a01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-perlindex
 * [new ref]         b0063c619e4d5054fd9bdce2b8b92e139df62a01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0063c6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild