fix(alert/report): add/edit modal issue

[lilykuang]

SUMMARY

• After deleting a report, add/edit modal doesn't reset the data

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After:
https://www.loom.com/share/47fde2a5390546dba8adbc9383ba778b

TEST PLAN

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Requires DB Migration.
• Confirm DB Migration upgrade and downgrade tested.
• Introduces new feature or API
• Removes existing feature or API

[codecov-io]

Codecov Report

Merging #12955 (88cda3c) into master (2eff860) will increase coverage by 0.24%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master   #12955      +/-   ##
==========================================
+ Coverage   69.18%   69.43%   +0.24%     
==========================================
  Files        1025     1036      +11     
  Lines       48814    48944     +130     
  Branches     5188     5294     +106     
==========================================
+ Hits        33772    33982     +210     
+ Misses      14908    14837      -71     
+ Partials      134      125       -9     

Flag	Coverage Δ
cypress	53.37% <33.33%> (+2.54%)	⬆️
javascript	61.84% <33.33%> (+<0.01%)	⬆️
python	66.94% <ø> (-0.75%)	⬇️

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

Impacted Files	Coverage Δ
...perset-frontend/src/views/CRUD/alert/AlertList.tsx	75.96% <0.00%> (-0.60%)	⬇️
...frontend/src/views/CRUD/alert/AlertReportModal.tsx	47.18% <50.00%> (+0.15%)	⬆️
superset/sql_validators/postgres.py	50.00% <0.00%> (-50.00%)	⬇️
superset/views/database/views.py	62.69% <0.00%> (-24.88%)	⬇️
superset/databases/commands/create.py	83.67% <0.00%> (-8.17%)	⬇️
superset/databases/commands/update.py	85.71% <0.00%> (-8.17%)	⬇️
superset/sql_validators/base.py	93.33% <0.00%> (-6.67%)	⬇️
superset/db_engine_specs/sqlite.py	90.62% <0.00%> (-6.25%)	⬇️
superset/db_engine_specs/base.py	79.85% <0.00%> (-6.15%)	⬇️
superset/db_engine_specs/presto.py	82.25% <0.00%> (-6.07%)	⬇️
... and 108 more

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[willbarrett]

Nice

[willbarrett]

Nit: can we add a test?