Mapper ManyToMany trait fails to save added and then deleted join

[Tmr]

Code of ManyToMany.save function:

    def save = {
      _joins = joins.filter { join =>
        otherFK(join)(f => f.is != f.defaultValue)
      }
      _joins foreach { thisFK(_)(_ set ManyToMany.this.primaryKeyField.is) }

      removedJoins.forall {_.delete_!} & ( // continue saving even if deleting fails
        children.forall(_.save) &&
          joins.forall(_.save)
      )
    }

if removedJoins contains join which returns _.delete_! == false while calling removedJoins.forall {_.delete_!} for example because of db_can_delete_? of join returns false (which is the case when we add and remove the join before save), then other removed joins in removedJoins, if they are after the join, will not be deleted. This is because forall method stops evaluating after first false

[dpp]

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[Tmr]

Sorry for my ignorance. I've opened topic in the mailing list: https://groups.google.com/d/topic/liftweb/lC6zCxmJFjg/discussion