$ git clone -n https://src.fedoraproject.org/rpms/CFR.git /var/lib/mock/f42-build-3357700-45030/root/chroot_tmpdir/scmroot/CFR
Cloning into '/var/lib/mock/f42-build-3357700-45030/root/chroot_tmpdir/scmroot/CFR'...
$ git fetch origin 877647d175414adf74999189793e352528d66f63:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/CFR
 * [new ref]         877647d175414adf74999189793e352528d66f63 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 877647d Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild