Extra spaces with condition tags

I'm using RH 2019 (reimagined), update 14, and there are extra spaces sometimes appearing before condition tags that seem impossible to remove.

For example, in Author view, note the extra space between InformaCast and Mobile in the following sentence: 

You will be redirected to a page where you will have to enter your password unless you are already logged into your account, in which case you will be immediately logged into InformaCast  Mobile Fusion.

The Source view looks like the following: 

You will be redirected to a page where you will have to enter your password unless you are already logged into your account, in which case you will be immediately logged into InformaCast <span data-condition="Others:Mobile"> Mobile</span><span data-condition="Others:Fusion"> Fusion</span>.

You can see that there are two spaces (one after InformaCast and one before Mobile).

However, when I remove that space either in Author or Source view, save it, and then view it in Preview view, it comes back. There's seemingly no way to get rid of it. However, it does not seem to be present in the actual published content (I'm using HTML5 output).

Elsewhere on that page, the same tags are used with no ill effects (Author view): 

You will be redirected to the gateway, which will return you to InformaCast Mobile Fusion once you’ve been authenticated.

And in Source view:

You will be redirected to the gateway, which will return you to InformaCast<span data-condition="Others:Mobile"> Mobile</span>
<span
data-condition="Others:Fusion"> Fusion</span> once you’ve been authenticated.

How do I fix this?