Typing words with „a" in signs do reset the line

Since the 1.17 release i noticed s bug with placing signs.

 

you can enter up to 4 lines, and if you enter an „a" in a line, it does reset the text.

 

so you can write exit in 1 line, but if you write the German Wort „ausgang" it looks like „ang" at the end.

I tried to write „aaaaa" but it always resets and goes back „a" only.

 I didn't note that with any other character