I'm not sure how did it happen or how to reproduce it, but reporting just in case:
In this edit some "￼" characters were inserted. It probably shouldn't have happened—I can't think of a reason for them to appear in articles.
The edit happens to be vandalism, and it was reverted because of other content problems. I don't know of a way to input these characters from mobile keyboards, so I guess that it's a bug in MobileFrontend or in the mobile browser that the editor used.
Here's another example in the English Wikipedia: https://en.wikipedia.org/w/index.php?title=Dreamtime_%28disambiguation%29&diff=next&oldid=655168898
Both edits are tagged as "Mobile edit, Mobile web edit, Visual edit", so tagging both VE and MobileFrontend. (The Hebrew Wikipedia edit also has a "nowiki" tag, which is inserted by a local AbuseFilter.)