Fix trescadirectlocalsolvertest

Use a much larger linear part. Otherwise the solution is always zero.

enabled an automatic merge when the pipeline for b0cba8f7 succeeds

added 3 commits

• b0cba8f7...916bc09c - 2 commits from branch osander:master
• 7c051c10 - Fix trescadirectlocalsolvertest

Compare with previous version

enabled an automatic merge when the pipeline for 7c051c10 succeeds

merged

mentioned in commit 66ba5ff2