$ git clone -n https://src.fedoraproject.org/rpms/ghc-th-abstraction.git /var/lib/mock/f40-build-776213-128705/root/chroot_tmpdir/scmroot/ghc-th-abstraction
Cloning into '/var/lib/mock/f40-build-776213-128705/root/chroot_tmpdir/scmroot/ghc-th-abstraction'...
$ git fetch origin e15562ac1917b6c552872982809c8b90230eb11c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-th-abstraction
 * [new ref]         e15562ac1917b6c552872982809c8b90230eb11c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e15562a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild