$ git clone -n https://src.fedoraproject.org/rpms/ghc-fingertree.git /var/lib/mock/f38-build-side-42-init-devel-614568-26312/root/chroot_tmpdir/scmroot/ghc-fingertree
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-614568-26312/root/chroot_tmpdir/scmroot/ghc-fingertree'...
$ git fetch origin 9642757dee79fe9856448584615ad50a7bc46deb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-fingertree
 * [new ref]         9642757dee79fe9856448584615ad50a7bc46deb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9642757 Convert to %autorelease and %autochangelog