Beamsplitter generates error with EnergyAnalyzer

Use laser_system.rs example. Analyze with mode e (energy): An error occurs while analyzing the beam splitter.

changed milestone to %v0.6

added bug label

assigned to @u.eisenbarth

created branch 315-beamsplitter-generates-error-with-energyanalyzer to address this issue

mentioned in commit d8ec4bf4

mentioned in merge request !205 (merged)

mentioned in commit a7c6fa1a

mentioned in commit f2fc18e8

closed with merge request !205 (merged)