bug fix for add graph and remove graph from project

[zyxxoo]

No description provided.

[codecov]

Codecov Report

Merging #1562 (a4e4cc9) into master (c088aca) will decrease coverage by 0.00%.
The diff coverage is 50.00%.

@@             Coverage Diff              @@
##             master    #1562      +/-   ##
============================================
- Coverage     63.11%   63.11%   -0.01%     
  Complexity     6671     6671              
============================================
  Files           417      417              
  Lines         34300    34303       +3     
  Branches       4740     4740              
============================================
+ Hits          21650    21651       +1     
- Misses        10409    10410       +1     
- Partials       2241     2242       +1     

Impacted Files	Coverage Δ
.../com/baidu/hugegraph/auth/StandardAuthManager.java	92.81% <50.00%> (-0.26%)	⬇️
...a/com/baidu/hugegraph/backend/query/Condition.java	79.56% <0.00%> (-0.73%)	⬇️
...om/baidu/hugegraph/task/StandardTaskScheduler.java	75.60% <0.00%> (-0.25%)	⬇️
...du/hugegraph/backend/tx/GraphIndexTransaction.java	82.25% <0.00%> (+0.21%)	⬆️

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