$ git clone -n https://src.fedoraproject.org/rpms/ghc-modern-uri.git /var/lib/mock/f40-build-777058-129193/root/chroot_tmpdir/scmroot/ghc-modern-uri
Cloning into '/var/lib/mock/f40-build-777058-129193/root/chroot_tmpdir/scmroot/ghc-modern-uri'...
$ git fetch origin 7c7fca56adafe757932c80f98adfd94155638e54:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-modern-uri
 * [new ref]         7c7fca56adafe757932c80f98adfd94155638e54 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c7fca5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild