[stable-3.10] Store the new etag into local database when opening with auto-locking…

[backportbot-nextcloud]

Backport of #6038

[codecov]

Codecov Report

Merging #6039 (b45da61) into stable-3.10 (5ea644d) will decrease coverage by 0.02%.
Report is 1 commits behind head on stable-3.10.
The diff coverage is 50.00%.

Additional details and impacted files

@@               Coverage Diff               @@
##           stable-3.10    #6039      +/-   ##
===============================================
- Coverage        60.16%   60.14%   -0.02%     
===============================================
  Files              145      145              
  Lines            18868    18872       +4     
===============================================
- Hits             11352    11351       -1     
- Misses            7516     7521       +5     

Files Changed	Coverage Δ
src/libsync/lockfilejobs.h	75.00% <ø> (ø)
src/libsync/lockfilejobs.cpp	96.06% <50.00%> (-1.50%)	⬇️

... and 3 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

50.0% Coverage
0.0% Duplication

[nextcloud-desktop-bot]

AppImage file: nextcloud-PR-6039-b45da619a47ee81c2e3b9f86f9b607bc5440223d-x86_64.AppImage

To test this change/fix you can simply download above AppImage file and test it.

Please make sure to quit your existing Nextcloud app and backup your data.