When the auto-range plot function is used on a data set with excluded data, it appears to consider the minimum and maximum dates of the original data, not the filtered (i.e. with exclusion) data.
Steps to reproduce:
1) Generate large fake data sample with several hundred dates
2) Exclude a large chunk of data at the beginning of the block
3) Use the auto-scale feature on the plot.
Auto-range on x-axis should start around the minimum time of the filtered data
Auto-range appears to use the minimum of the original data set.