$ git clone -n https://src.fedoraproject.org/rpms/ghc-SafeSemaphore.git /var/lib/mock/f38-build-side-42-init-devel-866054-28439/root/chroot_tmpdir/scmroot/ghc-SafeSemaphore
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-866054-28439/root/chroot_tmpdir/scmroot/ghc-SafeSemaphore'...
$ git fetch origin 83084dca7e14f218232eaa6efcb54e8303b83bcc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-SafeSemaphore
 * [new ref]         83084dca7e14f218232eaa6efcb54e8303b83bcc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83084dc Convert to %autorelease and %autochangelog