Skip subreport messages when copying and merging reports

[uhafner]

Example duplication:

Parsing console log (workspace: '/var/data/workspace/history-coverage-model')
Successfully parsed console log
-> found 0 issues (skipped 0 duplicates)
Skipping post processing
No filter has been set, publishing all 0 issues
Extracting repository forensics for 0 affected files (files in repository: 184)
-> 0 affected files processed
Successfully parsed console log
-> found 0 issues (skipped 0 duplicates)
Successfully parsed console log
-> found 0 issues (skipped 0 duplicates)
Successfully parsed console log
-> found 0 issues (skipped 0 duplicates)
Parsing console log (workspace: '/var/data/workspace/history-coverage-model')
Skipping post processing
No filter has been set, publishing all 0 issues
Extracting repository forensics for 0 affected files (files in repository: 184)
-> 0 affected files processed
Obtaining reference build from reference recorder
-> Found 'history-coverage-model #44'

[github-actions]

☀️   Quality Monitor

   🚦   Tests: 100 % successful (✔️ 1277 passed, 🙈 2 skipped)
   〰️   Line Coverage: 94% (405 missed lines)
   ➰   Branch Coverage: 88% (256 missed branches)
   CheckStyle: No warnings found
   PMD: No warnings found
   SpotBugs: No warnings found

Created by Quality Monitor v1.8.2 (#d626b05). More details are shown in the GitHub Checks Result.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.79%. Comparing base (c06a905) to head (c872fdc).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1058   +/-   ##
=========================================
  Coverage     90.79%   90.79%           
  Complexity     2316     2316           
=========================================
  Files           354      354           
  Lines          6526     6526           
  Branches        674      674           
=========================================
  Hits           5925     5925           
  Misses          405      405           
  Partials        196      196           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.