Charles Lyding 13fce451d8 refactor(@angular-devkit/core): delete deepCopy temporary symbol property after use
The `deepCopy` utility function previously set its internal tracking symbol property to `undefined` after completion.
However, this still caused the property to exist with a value of `undefined`. Jasmine 4.1 now checks for symbols with
its `toEqual` expectation which resulted in failing tests. The internal tracking symbol property is now removed instead
via `delete`.
2022-05-04 10:13:18 -07:00
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