$ git clone -n https://src.fedoraproject.org/rpms/ghc-xml-conduit.git /var/lib/mock/f38-build-side-42-init-devel-1072684-29786/root/chroot_tmpdir/scmroot/ghc-xml-conduit
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1072684-29786/root/chroot_tmpdir/scmroot/ghc-xml-conduit'...
$ git fetch origin 4d10c9ff799d70a41e68da1f2938535bf9405f4b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-xml-conduit
 * [new ref]         4d10c9ff799d70a41e68da1f2938535bf9405f4b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d10c9f Convert to %autorelease and %autochangelog