Shi Tian 3a6d6d7401 Fix for wide character being incorrectly cleared on MODE_INSERT ...

Under insert mode, when inserting a normal character in front of
a wide character, the affected region is shifted to the right by
one cell. However, the empty cell is reset as if being a part of a
wide character, causing the following cell being mishandled as a
dummy cell.
To reproduce the bug:
	printf '\033[4h' # set MODE_INSERT
	printf 妳好
	printf '\033[4D'
	printf 'x'
	printf '\033[4l\n'

2023-06-25 11:59:06 +02:00

56 KiB

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