Symbol change bugs
Here's a bug: Sometimes a symbol changes ownership but your charts still keep the old data and add it to the new data. Consider the symbol YETI: Up until 3/2017 it was one company that was bought out, but your chart still kept repeating the previous days close for almost two years (this is another bug!), then in 4/2019 it became another company but the old data and the 2 years of "previous close" kept repeating and this bug screws up the scale factor.
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