Merge remote-tracking branch 'origin/feature/5116_fit_with_graph_toolbar'
Merge remote branch 'origin/feature/7876_coverity_errors'
Merge remote branch 'origin/feature/7878_material_memory_leaks'
Re #7920. Use same python intepreter to launch threads.
Merge branch 'bugfix/7920_reduce_scd_parallel' into develop