in vim if you run gqip to reflow a paragraph (or gq generally to reflow some area based on a motion), if the old layout has a fullstop at the end of a line, the

in vim if you run gqip to reflow a paragraph (or gq generally to reflow some area based on a motion), if the old layout has a fullstop at the end of a line, the new layout will have a double space after it