Problems Replacing "/" with Space Character in Artist name

I have some albums by an artist with a slash (/) in their name. By default, beets replaces the slash with an underscore. I would like to replace the slash with a space. I have been trying to figure out how to to this and everything I try results in absolutely nothing or a “bad escape” error when I run beets. I started with the default set of regex substitutions and edited the first one from:
‘[\/]’: _
‘[\/]’: ’ ’
‘[\/]’: " "
‘[\/]’: '\ ’
and some others with no luck. Does nyone know how I might be able to achieve this?

Hi! You want this sneaky, undocumented config option:

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Thanks. I will look into this, though I am not sure if i should be scared about enabling it.