The main providers come from both the backend and client side plugins such as `in-folder` search.
The main providers may carry callbacks functions and other information that should be passed to the `filteredProviders`.
This is important because the current code does not make a distinction between `filteredProviders` and `providers`
rightly so, becuase they are the same thing!
Without the mentioned distinction above, sooner or later, we try to access a property on the `filteredProviders` which we
did not transfer with the manual property copy.
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This fix prevents in-folder search from searching everywhere when "load more results" is clicked; Essentially ignoring the in-folder
search filter.
Signed-off-by: nfebe <fenn25.fn@gmail.com>
77c88e1ae7