some of our products are still in 2015, and recently we found extra dot was introduced where it should be a space, this has been fixed in 2016, but we can not upgrade our project due to many dependencies, I hope this fix can be provided in the future 2015 patches:
2016 fixes are here:
https://gateway.sdl.com/apex/communityknowledge?articleName=CUs-Passolo-2016
"With Show Whitespace characters selected, copying a string from Passolo would also copy the dot character. Copying a string from Passolo now replaces the dot character with whitespace."