looks like there's a bug going around for mobile chrome where the enter key or backspace close the editor.
There's a tracker at chrome and a hot fix is coming for chrome, so this is not something we can fix at the moment. Hang tight and sorry for the minor annoyance.
There's a tracker at chrome and a hot fix is coming for chrome, so this is not something we can fix at the moment. Hang tight and sorry for the minor annoyance.