Second ext_pillar git repository not syncing

gistfile1.txt

In /etc/salt/master.d/gitfs-pillar-backend.conf:
ext_pillar:
  - git: master git+ssh://git@FQDN/it/pillar-wei.git
  - git: elasticsearch git+ssh://git@FQDN/it/pillar-wei.git

top.sls in branch master:
base:
  'salt.DOMAIN':
    - global
    - sudoers
  'gitlab.DOMAIN':
    - gitlab

top.sls in branch elasticsearch:
elasticsearch:
  'salt-test.DOMAIN':
    - global
    - elasticsearch

elasticsearch.sls in branch elasticsearch:
elasticsearch:
  cluster:
    name: elasticsearch
  node:
    master: true
    data: true
  network:
    host: grains['ip_interfaces:eth0']

In salt-test minion's config file:
environment: elasticsearch

However, output of salt-call pillar.items contains NO pillar data from global or elasticsearch.

/var/cache/salt/master/pillar_gitfs contains only one directory, '0', which is a checkout of the master branch.