The custom sort order specified contains one or more invalid column names: product%20DESC%2Ccomponent%2Cshort_desc%2Cassigned_to%20DESC%2Cbug_status%2Cpriority%2Cbug_id. They have been removed from the sort list.
Fri Apr 26 2024 03:32:06 UTC
It's not a bug. It's an undocumented feature.
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ID Product Comp Assignee Status Resolution Summary Changed
53147 POI HSSF dev RESO DUPL Reordering and removing sheet causes internal data inconsistency 2012-04-26
One bug found.

as

File a new bug in the "HSSF" component of the "POI" product