Background of the issue:
I am trying to translate my content using WPML. I made a short video to show you what I get: hidden link
Symptoms:
I can't save the translation because in French I use because there needs to be a space before the : but not in English. When I translate the French text to English, it will not let me save because I did not insert the in the English text.
Questions:
How can I save the translation without inserting in the English text?
I am afraid that is expected since we expect for translation to be the same for both languages and use the same HTML markers. We do have a feature request to change this and I will add your vote.
As a workaround best I can suggest is to hide it with CSS on your 2nd language if you do not need it, or use a manual translation method: