$ git clone -n https://src.fedoraproject.org/rpms/ghc-linear.git /var/lib/mock/f40-build-777453-129377/root/chroot_tmpdir/scmroot/ghc-linear
Cloning into '/var/lib/mock/f40-build-777453-129377/root/chroot_tmpdir/scmroot/ghc-linear'...
$ git fetch origin c365b6a72ab448a150b75c33f0b4bd505eb45bd3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-linear
 * [new ref]         c365b6a72ab448a150b75c33f0b4bd505eb45bd3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c365b6a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild