Treat hyphens as spaces in select (hover) search, like in all other searches

At the moment, two words separated by a hyphen are considered as one word, which is grammatically correct, but practically annoying when trying to find a rem via a quick popup search that could conceivably be written without the hyphen. See images for current behaviour.
The testing rem.
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Inline search, undesired behaviour.
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[[ Reference search, desired behaviour.
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“Main” ctrl+p search, also desired.
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Moved to the new platform