Installing Microsoft Edge adds duplicate entries to the apt sources list

[aromatic-dev]

On a fresh install of Ubuntu Mate 21.10 installing Microsoft Edge via the Software Boutique caused two entries to be added to the apt source list which seem to differ only by a trailing slash. This in turn causes an error to be displayed when checking to see if there are software updates.

More specifically, /etc/apt/sources.list.d$ ls microsoft* prints out microsoft-edge-beta.list microsoft-edge.list
and their content is as follows:
deb [arch=amd64] https://packages.microsoft.com/repos/edge/ stable main and
deb [arch=amd64] https://packages.microsoft.com/repos/edge stable main.