Have open only the WYSIWYG Editable view of a markdown file
Type something then immediately hit "command (or alt)+ enter"
The frame splits to reveal text source input on the right. However, what you just typed in the Editable view vanishes.
The problem is that splitting the frame really deletes it and creates a new one to the left and right. The state of the slate editor (what you just type), didn't get saved before the frame went away, so it just got lost.
The problem is that splitting the frame really deletes it and creates a new one to the left and right. The state of the slate editor (what you just type), didn't get saved before the frame went away, so it just got lost.