I just did a fresh installation (master branch on Debian 10). In the Time Conditions app, when creating an condition initially, the page display the correct holiday presets. But once it's saved, going back into the condition displays some skewed items. See attached screenshot. Note that Thanksgiving Day is missing and Columbus Day is listed twice at the bottom.
I assume this is a bug. Hopefully it can be fixed.
I assume this is a bug. Hopefully it can be fixed.