FA: Post Mass Additions failure (SPLIT_MERGED_CODE is null)

We are running into an issue in the Fixed Assets (FA) module where certain invoice lines fail during the Post Mass Additions process after we perform a Split or Merge in the "Prepare Mass Additions" form.

After checking the backend table FA_MASS_ADDITIONS, we noticed that the control/status flags are not being properly updated by the system during the UI operation.

Symptoms:

• For the failed record (e.g., Invoice TS11524262), the fields SPLIT_MERGED_CODE, SPLIT_CODE, MERGED_CODE, and PARENT_ASSET_ID are either completely empty (NULL) or missing the expected "MP" (Merge Parent) flag.
• For successful records (e.g., Invoice