Avoid redundantly loading previews for search/find #569
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This is a followup to #562 (comment)
This PR avoids redundantly invoking the previewer script upon using find or searching (both normal and incremental). Find and search methods now return the result of
nav.up
/nav.down
, and ineval.go
I've inserted checks corresponding checks. In some locations I had to manually check if the currentdir.ind
differs from its previous value.