checks OK URL: https://codereview.tryton.org/370571002
New changeset a5996117b08e by Cédric Krier in branch 'default': Do not open deferral move if there is none https://hg.tryton.org/modules/account/rev/a5996117b08e
New changeset 7f586d3a10c2 by Cédric Krier in branch 'default': Do not open deferral move if there is none https://hg.tryton.org/tryton-env/rev/7f586d3a10c2
New changeset fb460db1bb33 by Cédric Krier in branch '6.2': Do not open deferral move if there is none https://hg.tryton.org/modules/account/rev/fb460db1bb33