$ git clone -n https://src.fedoraproject.org/rpms/ghc-uri.git /var/lib/mock/f38-build-side-42-init-devel-624164-26364/root/chroot_tmpdir/scmroot/ghc-uri
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-624164-26364/root/chroot_tmpdir/scmroot/ghc-uri'...
$ git fetch origin f18a241dc285924309f58c4017368be60411a916:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-uri
 * [new ref]         f18a241dc285924309f58c4017368be60411a916 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f18a241 Convert to %autorelease and %autochangelog