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Tom Holland 's recent injury on the set of "Spider-Man: Brand New Day" happened during a "routine" stunt ... and is not expected to hold up production for long.

Sources with direct knowledge tell TMZ ... Tom suffered a bump on the head ... which resulted in a "minor" concussion when he fell . Alamy

We hear production is currently paused due to the incident ... but the stoppage is not expected to go past this week. That said, there is no exact date to resume rolling ... or should that be swinging?

Tom was checked out at the hospital for his mild concussion ... but was feeling well enough to attend a charity event with his costar/fiancée Zendaya afterward. Gallery Launch Gallery Getty

The Marvel-Sony movie is currently shooting in Glasgow ... they've been

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