$ git clone -n https://src.fedoraproject.org/rpms/perl-Acme-Damn.git /var/lib/mock/f40-build-2301244-56769/root/chroot_tmpdir/scmroot/perl-Acme-Damn
Cloning into '/var/lib/mock/f40-build-2301244-56769/root/chroot_tmpdir/scmroot/perl-Acme-Damn'...
$ git fetch origin a66dfed0a82339ac3869f301cc0d5b48cd9b9c08:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Acme-Damn
 * [new ref]         a66dfed0a82339ac3869f301cc0d5b48cd9b9c08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a66dfed Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild