$ git clone -n https://src.fedoraproject.org/rpms/erlang-amf.git /var/lib/mock/f45-build-8219-379/root/chroot_tmpdir/scmroot/erlang-amf
Cloning into '/var/lib/mock/f45-build-8219-379/root/chroot_tmpdir/scmroot/erlang-amf'...
$ git fetch origin 74ceb89c65babcb9dd5134f8eef6d58ac9c5083b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-amf
 * [new ref]         74ceb89c65babcb9dd5134f8eef6d58ac9c5083b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 74ceb89 Fix FTBFS