$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Dumper-Names.git /var/lib/mock/f40-build-2016358-46183/root/chroot_tmpdir/scmroot/perl-Data-Dumper-Names
Cloning into '/var/lib/mock/f40-build-2016358-46183/root/chroot_tmpdir/scmroot/perl-Data-Dumper-Names'...
$ git fetch origin 6b6fb6dae0c82759648ecd346ea5f1ceb5f33931:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Dumper-Names
 * [new ref]         6b6fb6dae0c82759648ecd346ea5f1ceb5f33931 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b6fb6d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild