Duplicate feast apply bug

[felixwang9817]

What this PR does / why we need it: This PR ensures that the dummy entity does not get deleted on feast apply.

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

NONE

[codecov-commenter]

Codecov Report

Merging #2087 (0387e2a) into master (0356181) will increase coverage by 0.13%.
The diff coverage is 79.16%.

@@            Coverage Diff             @@
##           master    #2087      +/-   ##
==========================================
+ Coverage   83.30%   83.43%   +0.13%     
==========================================
  Files         100      100              
  Lines        8072     8077       +5     
==========================================
+ Hits         6724     6739      +15     
+ Misses       1348     1338      -10     

Flag	Coverage Δ
integrationtests	73.85% <79.16%> (+0.14%)	⬆️
unittests	58.10% <20.83%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sdk/python/feast/repo_operations.py	44.17% <33.33%> (+1.59%)	⬆️
sdk/python/feast/registry.py	80.52% <83.33%> (+0.10%)	⬆️
.../python/tests/integration/registration/test_cli.py	100.00% <100.00%> (ø)
sdk/python/feast/feature_service.py	82.60% <0.00%> (+1.44%)	⬆️

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[felixwang9817]

/ok-to-test

[felixwang9817]

/kind bug

[achals]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: achals, felixwang9817

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• OWNERS [achals,felixwang9817]

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