$ git clone -n https://src.fedoraproject.org/rpms/ghc-haskell-gi-overloading.git /var/lib/mock/f38-build-side-42-init-devel-1134976-30357/root/chroot_tmpdir/scmroot/ghc-haskell-gi-overloading
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1134976-30357/root/chroot_tmpdir/scmroot/ghc-haskell-gi-overloading'...
$ git fetch origin e0ae4d05860103734da0bc55a45c53db15a5a3ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-haskell-gi-overloading
 * [new ref]         e0ae4d05860103734da0bc55a45c53db15a5a3ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0ae4d0 Convert to %autorelease and %autochangelog