I believe this is solved upstream https://pagure.io/certmonger/c/a144529ce829ae6bed8607743c065c529ee5bf87?branch=master
As also seen in another issue - https://pagure.io/certmonger/issue/282 So all is needed is simply update Debian repo to pull in changes and make a new package. Debian Tracker already shows that a new upstream version is available 0.79.20. Very likely that is all that is needed. Please consider updating the source as this is a dependency of other packages that were removed from Debian Testing due to this bug. Karolis M.