Cannot edit column content after deleting content

[cristianfrumusanu]

After entirely deleting the content from one column, the specific column (now empty) cannot be edited anymore.

[andreilupu]

In teorie cazul asta nu se mai intampla de cand zona editabila e limitata la column, iar o coloana goala nu prea exista, ar trebui sa aiba cel putin un ;nbsp in el