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https://github.com/chanzuckerberg/cellxgene.git
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bdd69160e2
* Remove unused variables and imports
* Simplify conditional
* Fix typo
* Do not overprune var data cache
There is a bug in how the universe and world gene sets are constructed
and passed to `ControlsHelpers.pruneVarDataCache` that causes the var
data cache to be over-pruned. This commit fixes the issue.
Consider the following example from the node console:
```
❯ node
Welcome to Node.js v13.5.0.
Type ".help" for more information.
> new Set([1], [2], [3])
Set(1) { 1 }
```
What we really want is the set `Set(3) { 1, 2, 3 }`, which can be
constructed as:
```
> new Set([].concat([1], [2], [3]))
Set(3) { 1, 2, 3 }
```
