$ git clone -n https://src.fedoraproject.org/rpms/ghc-microlens-mtl.git /var/lib/mock/f40-build-776379-128831/root/chroot_tmpdir/scmroot/ghc-microlens-mtl
Cloning into '/var/lib/mock/f40-build-776379-128831/root/chroot_tmpdir/scmroot/ghc-microlens-mtl'...
$ git fetch origin b64d530d62dd3e7a2177da29f01d23189b5503d9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-microlens-mtl
 * [new ref]         b64d530d62dd3e7a2177da29f01d23189b5503d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b64d530 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild