https://bugs.documentfoundation.org/show_bug.cgi?id=146671
--- Comment #1 from rossni...@gmail.com --- I think I've solved it. The extra 0:00.5 is from a cell $N$4. When I sort the column, this cell position becomes empty. I'll have to figure out a better way of adding the 0.00.5 -- You are receiving this mail because: You are the assignee for the bug.
