We have:

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19.700 table:range-usable-as
The table:range-usable-as attribute specifies whether the name of the range can be used
within the specification of a print range, a filter, a repeating row, or a repeat column.
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(1) Clearly we should have "a repeating row, or a repeating column" (or possibly "a repeat row, or a repeat column")

(2) This appears to be the only place in ODF1.2 Part 1 where we mention "repeating row" or "repeat column". So what is the specification of a repeating row, or a repeat column?

I suspect that this is related to 9.1.7 <table:table-header-rows> and 9.1.11 <table:table-header-columns> but since we are using "header" here rather than "repeat" or "repeating" this is absolutely unclear.