$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-ccgo-3.git /var/lib/mock/f40-build-2534940-61850/root/chroot_tmpdir/scmroot/golang-modernc-ccgo-3
Cloning into '/var/lib/mock/f40-build-2534940-61850/root/chroot_tmpdir/scmroot/golang-modernc-ccgo-3'...
$ git fetch origin be73f90b1a9cb770828dad22e41bbb9f7440743c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-ccgo-3
 * [new ref]         be73f90b1a9cb770828dad22e41bbb9f7440743c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be73f90 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild