Avoid unwanted genesis migration records

[tinker-michaelj]

Description:

• Only export synth creations at true genesis (when lastHandled time is null).

[Neeharika-Sompalli]

LGTM !

[github-actions]

Node: Unit Test Results

    1 592 files      1 592 suites   15m 0s ⏱️
103 134 tests 103 122 ✔️ 12 💤 0 ❌
109 534 runs  109 522 ✔️ 12 💤 0 ❌

Results for commit 2b87494.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +20.31% 🎉

Comparison is base (8a7d101) 68.80% compared to head (2b87494) 89.12%.

Additional details and impacted files

@@              Coverage Diff               @@
##             develop    #7783       +/-   ##
==============================================
+ Coverage      68.80%   89.12%   +20.31%     
+ Complexity     25478    20257     -5221     
==============================================
  Files           2350     1609      -741     
  Lines         149291    60727    -88564     
  Branches        9150     6414     -2736     
==============================================
- Hits          102727    54123    -48604     
+ Misses         44614     5216    -39398     
+ Partials        1950     1388      -562     

Files Changed	Coverage Δ
.../mono/state/migration/MigrationRecordsManager.java	98.86% <100.00%> (ø)

... and 979 files with indirect coverage changes

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

100.0% Coverage
0.0% Duplication

[github-actions]

Node: E2E Test Results

    1 files      1 suites   17m 51s ⏱️
310 tests 310 ✔️ 0 💤 0 ❌
328 runs  328 ✔️ 0 💤 0 ❌

Results for commit 2b87494.

[github-actions]

Node: Integration Test Results

278 tests   278 ✔️  32m 22s ⏱️
    5 suites      0 💤
    5 files        0 ❌

Results for commit 2b87494.