$ git clone -n https://src.fedoraproject.org/rpms/perl-Carmel.git /var/lib/mock/f40-build-2301867-56826/root/chroot_tmpdir/scmroot/perl-Carmel
Cloning into '/var/lib/mock/f40-build-2301867-56826/root/chroot_tmpdir/scmroot/perl-Carmel'...
$ git fetch origin cdc07e7839843dbb7f4dba178bb4a64cc06b84e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Carmel
 * [new ref]         cdc07e7839843dbb7f4dba178bb4a64cc06b84e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cdc07e7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild