cursor in wrong position when input enter key

when I input enter key, the cursor will position to next line, but there is not any space between it and the line above it. Only if I input any character, the space becomes the same as lineSpace.

No file or test is named in the issue. Start by reproducing the Enter-key behavior in LineHeightEditText and inspect the line-spacing and cursor handling; done means the new line has the configured spacing immediately after Enter, without requiring another character.

Written by the indexing model from the issue text.