Is is common or required practice to get the original author's OK after and editor has done his/her thing? If so, I would think that would alleviate any concerns about modified quotations.
On Tue, 2020-02-18 at 13:19 -0500, Paul Frields wrote:
... I think ... it's OK to correct slight errors in quotations, as long as it's clear what the author's meaning was.