[FIX] stock_planning: No category showed correctly in the tree of stock planning.
[FIX] stock_planning: No category showed correctly in the tree of stock planning.

jobiols/odoomrp-wip,agaldona/odoomrp-wip-1,odoomrp/odoomrp-wip,odoomrp/odoomrp-wip,agaldona/odoomrp-wip-1,jobiols/odoomrp-wip,Daniel-CA/odoomrp-wip-public,sergiocorato/odoomrp-wip,Daniel-CA/odoomrp-wip-public,sergiocorato/odoomrp-wip