Last space before last word deleting

[Gabriele]

It's easier to explain by showing how to reproduce it: Write something "something" (using bold, but it's not necessary to reproduce the bug) space and something else (this time let's say in italic) "something something" now press space again and then delete, what happens is that the last words gets moved left, by one space "somethingsomething" and also gets changed from italics (or anything else) to bold (or whatevere the previous word was using).
Happened on a Meizu MX4

[costales (costales)]

Hi Gabriele,
I tried with keyboard on screen and a Bluetooth keyboard and I can't reproduce it.