LO 7.1 Releases notes
Added PRODUCT table formula for Word interoperability tdf#123388 (László Németh, NISZ)
Added ABS table formula for Word interoperability tdf#123354 (László Németh, NISZ)
Added SIGN table formula for Word interoperability tdf#123390 (László Németh, NISZ)
Added COUNT table formula for Word interoperability tdf#123356 (László Németh, NISZ)
Olivier Hallot committed a patch related to this issue.
It has been pushed to "master":
tdf#136510 New Writer table functions PRODUCT, ABS.