Hi Sohail,
a) Your best catch guy is ABAPER in your team .
b) You You need to login to service marketpace and search for OSS using the keywords will be SAPSQL_ARRAY_INSERT_DUPREC and IW41 .
SAP Note & Knowledge Base Article Search | SAP Support Portal
c) I see few notes but they are too old so assuming that SAP would have already corrected this issue in later releases.
d) were you able to to confirmation earlier and can't do it today ?
Anjan