[confirmed] MI7: Table bug when merging cells

[SleepyBalrog]

After merging all cells in a row it is no longer possible to resize the columns widhts, all columns have an equal fixed width. I have experienced this with 2, 3 and 4 columns tables when merging all the cells of the first row to create a table header.

[Petko]

I will see what can be done about it.