I don't know if someone already had this ideia.
If an espace belong to a solution currently being published, block or at least give a warning when someone try to publish that espace.
Many times during a solution publish someone doesn't remember, causing many times a solution publish failure.
Duplicated idea:
https://www.outsystems.com/ideas/Idea_View.aspx?IdeaId=1150
That's a very old ideia entry. A new entry to remember Outsystems...