Editable cells don't work in Safari

Copied from #1081 @lojka59

i found out that editable cell didn't work on Safari, should i make write new issue or just write here ? easy way to check: it didn't work even in Blueprint docs

When i click empty cell, no cursor appear. Then when i click another cell, first one didn't exit edit mode so i end up with multiple cells in edit mode (and can't edit any of them)

I can only edit cell that already got text, if i select text with mouse after entering edit mode