Fix mark incomplete command for topics

[MisRob]

Description

Update license validation queries to skip topics. The previous version validated licenses of topics that were previous set as complete. That doesn't make sense because we don't require license on topics and was also one part of the problem occurring for some historical topics incorrectly marked as incomplete (see "Steps to Test" for details)

Steps to Test

I've discovered this issue by restoring "Be Strong: Internet safety resources" channel that contains topics with a license set but copyright holder missing even when it's required for the license, and even when we actually don't require a license for topics nor have UI to edit it.

Then I run yarn run devsetup and many topics were marked as incomplete even though they have titles which is the only validation criteria for topics (e.g. "Module 1 - "My Digital Life").

Running yarn run devsetup on this channel with this fix should mark all topics that have a title as complete and there should be no errors in the channel editor app visible for these topics.

Comments

Related conversation https://learningequality.slack.com/archives/C0LK8QS9J/p1612791884401500

[codecov]

Codecov Report

Merging #2915 (47dd0b9) into hotfixes (28587f8) will increase coverage by 4.65%.
The diff coverage is 93.00%.

@@             Coverage Diff              @@
##           hotfixes    #2915      +/-   ##
============================================
+ Coverage     80.80%   85.46%   +4.65%     
============================================
  Files           281      298      +17     
  Lines         12659    15794    +3135     
============================================
+ Hits          10229    13498    +3269     
+ Misses         2430     2296     -134     

Impacted Files	Coverage Δ
contentcuration/contentcuration/decorators.py	56.60% <50.00%> (-37.60%)	⬇️
...ntentcuration/contentcuration/db/models/manager.py	91.20% <90.98%> (-8.80%)	⬇️
contentcuration/contentcuration/forms.py	82.85% <94.31%> (+34.40%)	⬆️
contentcuration/contentcuration/api.py	92.06% <100.00%> (+1.43%)	⬆️
...tentcuration/contentcuration/context_processors.py	100.00% <100.00%> (ø)
...ontentcuration/contentcuration/db/advisory_lock.py	100.00% <100.00%> (ø)
...tcuration/contentcuration/db/models/expressions.py	93.33% <100.00%> (-6.67%)	⬇️
...entcuration/contentcuration/db/models/functions.py	100.00% <100.00%> (ø)
...ation/contentcuration/tests/test_rest_framework.py	36.93% <0.00%> (-63.07%)	⬇️
contentcuration/contentcuration/utils/format.py	21.05% <0.00%> (-49.54%)	⬇️
... and 180 more

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