Items for remaining balance created incorrectly when items show over 1000 rows on Maintenance Worksh

This issue was reported from Japanese customer and this scenario may face to your side, so I would like to share this with you.

Issue
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Release: FSCM9.1 Bundle #20 or older

When offsetting items on Maintenance Worksheet, items for remaining balance created incorrectly.
This issue occurred when setting value over 1000 to Max Number of Rows in Scrolls in Installation Options.

For example,

when offsetting on-account item (Entry Type: OA) with pending item (sequence number: 2642), items for remaining balance was created as item in sequence number 264. (it likes sequence number was truncated)

Cause
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This issue occurred by the incorrect design for a field (WS_CUR_ROW, WS_CUR_ROW2) in PS_WS_WRK.