$ git clone -n https://src.fedoraproject.org/rpms/erlang-js.git /var/lib/mock/f41-build-1693201-24360/root/chroot_tmpdir/scmroot/erlang-js
Cloning into '/var/lib/mock/f41-build-1693201-24360/root/chroot_tmpdir/scmroot/erlang-js'...
$ git fetch origin 652a4068e3bfb5c17f757eb17b533558a57aabc9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-js
 * [new ref]         652a4068e3bfb5c17f757eb17b533558a57aabc9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 652a406 convert ASL 2.0 license to SPDX