Fixes #3185: strings broadcast bug #3210
Merged
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This PR fixes #3185 by removing the custom string permutation logic in favor of broadcasting the indices and then indexing into the segstring. I realized that we overcomplicating things and that optimizing this solution would essientailly be duplicating the segstring indexing code. I don't know what lead me to take this approach in the first place, but this is much cleaner and makes use of existing well-tested and optimized functions