Laplacian fix - part 1

Description

Laplacian fix, part 1: Use the default tolerance for the SVD, which is better than the fixed value.

This is meant to reduce the effort in merging !1777 (merged).

Checklist

• I have checked that my code follows the Octopus coding standards
• I have added tests for all the new features added in this request.

changed milestone to %14.0

added Bugfix label

@martin.lueders @AlexBuccheri I am breaking !1777 (merged) into smaller bits because else, this won't get merged.

Codecov Report

All modified and coverable lines are covered by tests

Comparison is base (247bf2d) 68.25% compared to head (a2b3659) 68.25%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2245      +/-   ##
==========================================
- Coverage   68.25%   68.25%   -0.01%     
==========================================
  Files         597      597              
  Lines       99453    99452       -1     
==========================================
- Hits        67879    67878       -1     
  Misses      31574    31574              

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@martin.lueders This is all green, could we merge this? Next, I will activate the SVD for non-orthogonal cells...

approved this merge request

merged

mentioned in commit 7cafc77a

added in Changelog label