$ git clone -n https://src.fedoraproject.org/rpms/swiftlint.git /var/lib/mock/f39-build-1964906-43285/root/chroot_tmpdir/scmroot/swiftlint
Cloning into '/var/lib/mock/f39-build-1964906-43285/root/chroot_tmpdir/scmroot/swiftlint'...
$ git fetch origin e9b1a67644a01295f124e08ca848739155d12335:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/swiftlint
 * [new ref]         e9b1a67644a01295f124e08ca848739155d12335 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9b1a67 Retain rpath so this can actually run