$ git clone -n https://src.fedoraproject.org/rpms/perl-Acme-Damn.git /var/lib/mock/f42-build-877232-180141/root/chroot_tmpdir/scmroot/perl-Acme-Damn
Cloning into '/var/lib/mock/f42-build-877232-180141/root/chroot_tmpdir/scmroot/perl-Acme-Damn'...
$ git fetch origin d55d4f2562f98583236c10a3b9db56db1d2b9edf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Acme-Damn
 * [new ref]         d55d4f2562f98583236c10a3b9db56db1d2b9edf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d55d4f2 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild