$ git clone -n https://src.fedoraproject.org/rpms/erlang-esasl.git /var/lib/mock/f41-build-884532-16596/root/chroot_tmpdir/scmroot/erlang-esasl
Cloning into '/var/lib/mock/f41-build-884532-16596/root/chroot_tmpdir/scmroot/erlang-esasl'...
$ git fetch origin 45852fd51dbcca5c1eb81639762fc982379bb9e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-esasl
 * [new ref]         45852fd51dbcca5c1eb81639762fc982379bb9e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45852fd Eliminate use of obsolete %patchN syntax (#2283636)