Positive balance on this account means, that mirror_section_uid "owns" money to
section_uid.

It will allow to detect divergences.

It allows global builders to add tax lines and generate accounting.

As they can come from multiple simulation movements, ignore date divergence.

There shall be none data change.

Since 31addb009ebc1c9f81daa7611516bcae07ee46de in erp5.git repository erp5_km
folder is accessible everywhere.

Merge movements with same prices, ignore dates.

Ignore dates divergency and automatically solve quantity by summing up
Simulation Movements.