$ git clone -n https://src.fedoraproject.org/rpms/ghc-haxr.git /var/lib/mock/f40-build-777301-129331/root/chroot_tmpdir/scmroot/ghc-haxr
Cloning into '/var/lib/mock/f40-build-777301-129331/root/chroot_tmpdir/scmroot/ghc-haxr'...
$ git fetch origin 337acbdc4957ae87362f062b5be4ec0183479d69:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-haxr
 * [new ref]         337acbdc4957ae87362f062b5be4ec0183479d69 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 337acbd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild