$ git clone -n https://src.fedoraproject.org/rpms/ghc-GLURaw.git /var/lib/mock/f38-build-side-42-init-devel-763378-27709/root/chroot_tmpdir/scmroot/ghc-GLURaw
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-763378-27709/root/chroot_tmpdir/scmroot/ghc-GLURaw'...
$ git fetch origin 0ae107392078134fd80828d9027705756de932c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-GLURaw
 * [new ref]         0ae107392078134fd80828d9027705756de932c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ae1073 Convert to %autorelease and %autochangelog