Bug#952871: itstool: Segmentation Fault when Merging French Translation

[François Mazen]

fixed 952871
thanks

Can not reproduce on recent sid, package versions:

itstool         2.0.6-1
python3         3.8.2-3
python3-libxml2 2.9.10+dfsg-5+b1

It was probably an issue in python3-libxml2.

Thanks,
François