[Backport 5.3.9104] Context: avoid panic on stopwords query (#62026) #62055
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In #60106, we fixed a bug where the context search threw an error when the query was composed entirely of stopwords. However, the queries were still returning results (based on filename match). This means that for a stopwords-only query like "what's going on?" we return a fairly random set of files, which confuses the LLM. Now we make sure to return an empty search, which returns no results.
In #61848, we tried to fix an issue when the query contained only stopwords and we interpreted this as "match all files". Unfortunately this fix introduced a panic by returning a nil search job, which is not allowed by the our job framework. Now, we return a `noopJob` which returns no results. This is the same approach we use when an AND/ OR query has no operands.
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Apr 21, 2024
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This backport folds together these two PRs, which together fix a bug around
queries containing only stopwords:
Test plan
Same test plan as original PRs