Gimp crashed with the text tool

[gaara]

I had to comment a JPG image with the text tool with numbers, here are the steps:

1) Open the jpg: ok
2) Comment the image:
- If I choose the font size first, the crash appends
- If I write something in the square and after I choose the font size, no problem.

This bug appears each time I try to choose the font size before writing someting in my JPG.

Here is the result in the terminal (in french):
-------------------
(gimp:16988): Gtk-WARNING **: Theme directory of theme oxygen has no size field

While parsing XMP metadata:
Erreur à la ligne 46 caractère 1 : La fin de l'élément « exif:Flash » n'est pas attendue dans ce contexte

Metadata parasite seems to be corrupt
While parsing XMP metadata:
Erreur à la ligne 60 caractère 1 : La fin de l'élément « exif:Flash » n'est pas attendue dans ce contexte

Metadata parasite seems to be corrupt

(script-fu:16996): LibGimpBase-WARNING **: script-fu: gimp_wire_read(): error
Erreur de segmentation (core dumped)
-------------------

Kubuntu 16.04 x64, kernel 4.4.0-22-generic