Found working on MDL-82173

If you add a table class eg table-danger to a row then it only works on every second row:

• If table-striped is not added to the table then all rows have it missing.
• If you hover over a row that doesn't have the colour then it is shown on hover, but if table-hover is also missing then this is doesn't work either
• all of this works in vanilla bootstrap outside of moodle