Some table headers are ignored
The customer wanted to ignore a column, but the RY Property macro was ignored.
The HTML <table> element is modified by a few plugins when loading the page (to make the table sortable, etc.), so there were several <thead> elements. The solution was to use the first <thead> only.
We need to skip headers in some situations, for example when users set headers on the left instead of at the top.
Since there are a few questions about headers not being taken into account, we'll also display a popup when not all headers are used.