Disallow FeatureFlagUtil.isEnabled to get parameters from routers

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    • Fully Compatible
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    • Sharding EMEA 2022-06-13, Sharding EMEA 2022-06-27
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      Adapt FeatureFlagUtil.isEnabled in order to throw an exception in case a db coming from a mongos is passed as argument.

      Reproducible with BalanceAccordingToDataSize feature flag disabled by default but enabled via resmoke params:

      const st = new ShardingTest({
  name: clusterName,
  shards: 1
});
print('enabled on mongos ' + FeatureFlagUtil.isEnabled(st.s.getDB('admin'), 'BalanceAccordingToDataSize'));
print('enabled on CSRS ' +
FeatureFlagUtil.isEnabled(st.configRS.getPrimary().getDB('admin'), 'BalanceAccordingToDataSize'));

      Output:

      enabled on mongos false
enabled on CSRS true

            Assignee:
            Antonio Fuschetto
            Reporter:
            Pierlauro Sciarelli
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              Created:
              Updated:
              Resolved: