$ git clone -n https://src.fedoraproject.org/rpms/ghc-lazysmallcheck.git /var/lib/mock/f38-build-side-42-init-devel-967471-28808/root/chroot_tmpdir/scmroot/ghc-lazysmallcheck
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-967471-28808/root/chroot_tmpdir/scmroot/ghc-lazysmallcheck'...
$ git fetch origin eb4b8c981807baa07685a82f10a3058e45f33f5c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-lazysmallcheck
 * [new ref]         eb4b8c981807baa07685a82f10a3058e45f33f5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb4b8c9 Convert to %autorelease and %autochangelog