[pegasus] fix bug in (#1954)

[bmmcq]

fix the bug in issue: #1954 ;

[CLAassistant]

All committers have signed the CLA.

[codecov-commenter]

Codecov Report

Merging #1958 (1d10a5f) into main (009fd8c) will decrease coverage by 3.79%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1958      +/-   ##
==========================================
- Coverage   43.93%   40.13%   -3.80%     
==========================================
  Files          89       89              
  Lines        9820     9820              
==========================================
- Hits         4314     3941     -373     
- Misses       5506     5879     +373     

Impacted Files	Coverage Δ
python/graphscope/tests/unittest/test_java_app.py	0.00% <0.00%> (-100.00%)	⬇️
python/graphscope/deploy/hosts/cluster.py	29.41% <0.00%> (-58.83%)	⬇️
python/graphscope/analytical/app/java_app.py	24.24% <0.00%> (-44.95%)	⬇️
python/graphscope/framework/utils.py	40.10% <0.00%> (-14.85%)	⬇️
python/graphscope/framework/app.py	69.95% <0.00%> (-10.33%)	⬇️
python/graphscope/framework/graph_schema.py	52.45% <0.00%> (-7.11%)	⬇️
python/graphscope/tests/conftest.py	48.21% <0.00%> (-4.65%)	⬇️
python/graphscope/client/rpc.py	86.11% <0.00%> (-3.71%)	⬇️
python/graphscope/client/session.py	63.75% <0.00%> (-3.22%)	⬇️
python/graphscope/analytical/udf/utils.py	36.17% <0.00%> (-3.20%)	⬇️
... and 3 more

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