Hi! I'm so so sorry about this! :( It was due to a mistake in version 3.43.0 but I've reverted it to the previous one about one hour ago thanks to an email from another user.

Version 3.43.2 will fix this problem and is already awaiting review by Mozilla. The old version 3.42.1 is also safe.

Please see more details here:
https://github.com/CanisLupus/swift-selection-search/issues/195

My sincere apologies,
Daniel