(release/v20.03) Fix facets response with normalize

[ashish-goswami]

Fixes: #5241
Fixes: DGRAPH-1670

This PR is related to #5690. It issues with facets response when facets are retrieved with
@normalize directive. Below two cases are covered:

1. Fixing facets response with uid/uid list predicates.
2. Fixing facets response with scalard list predicates.

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[pawanrawal]

Reviewed 2 of 2 files at r1.
Reviewable status: all files reviewed, 2 unresolved discussions (waiting on @ashish-goswami)

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query/query_facets_test.go, line 2209 at r1 (raw file):

		q(func: uid(0x1)) @normalize {
			name: name
			friend @facets(since) @normalize {

Can you add a test case for uid list at second level also since this change impacts uid list?

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query/query_facets_test.go, line 2228 at r1 (raw file):

				},
				{
				"friend_name": "Glenn Rhee",

formatting is messed up

[ashish-goswami]

Reviewable status: 1 of 2 files reviewed, 2 unresolved discussions (waiting on @pawanrawal)

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query/query_facets_test.go, line 2209 at r1 (raw file):

Previously, pawanrawal (Pawan Rawal) wrote…

Can you add a test case for uid list at second level also since this change impacts uid list?

Done.

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query/query_facets_test.go, line 2228 at r1 (raw file):

Previously, pawanrawal (Pawan Rawal) wrote…

formatting is messed up

Done.