structs not checked for wrong configurations?

[onkelandy]

In lib.config functions such as remove_keyword, etc. are run on the item configuration to fix potential issues.
However, such bad config in structs slip through and end up in the item tree.

[onkelandy]

tested the remove_keyword functionality but adding a struct with an item called return. Works for global_struct as well as user defined struct file. Also items starting with a digit in structs are correctly identified. can be merged imho.