$ git clone -n https://src.fedoraproject.org/rpms/ghc-hspec-megaparsec.git /var/lib/mock/f38-build-side-42-init-devel-632773-26381/root/chroot_tmpdir/scmroot/ghc-hspec-megaparsec
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-632773-26381/root/chroot_tmpdir/scmroot/ghc-hspec-megaparsec'...
$ git fetch origin 2f7d53256673b7a76cb90e9bea1c3a90703c3a77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hspec-megaparsec
 * [new ref]         2f7d53256673b7a76cb90e9bea1c3a90703c3a77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f7d532 Convert to %autorelease and %autochangelog