Avoiding duplicate clears in edit-line, which cause unintended scroll up for multi-line inputs.
Avoiding duplicate clears in edit-line, which cause unintended scroll up for multi-line inputs.

norton/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,norton/chibi-scheme