context: Do not use context for reports not meant for direct human consumption

src/commands/CmdProjects.cpp

@@ -169,7 +169,7 @@ CmdCompletionProjects::CmdCompletionProjects ()
   _read_only             = true;
   _displays_id           = false;
   _needs_gc              = true;
-  _uses_context          = true;
+  _uses_context          = false;
   _accepts_filter        = true;
   _accepts_modifications = false;
   _accepts_miscellaneous = false;