tserver crashes on Scan when [lowerPrimaryKey, upperPrimary) and predicates of primary column do not overlap.
Example of table in TestScannerMultiTablet unittest, The table like this:
The data layout ends up like this:
add Scan PrimaryKeyBounds: ['12', '13')
add Scan Predicate: key2 <= '1'
Run the example, ts will crash, and print "NONE predicate can not be pushed into key"