Merge branch 'fix_Boundary_2D_creation' into 'master'

Hotfix! for creation of wrong index when using generate_boundary in 2D

See merge request !3
1 job for release/0.2.6 in 6 minutes and 1 second (queued for 1 second)
latest
Name Stage Failure
failed
tests Test
ValueError: Fluctuations can only be added to weighted-orthogonal methods

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Ran 8 tests in 27.910s

FAILED (errors=1)
Test failed: <unittest.runner.TextTestResult run=8 errors=1 failures=0>
error: Test failed: <unittest.runner.TextTestResult run=8 errors=1 failures=0>
ERROR: Job failed: exit code 1