'SCRIPT_NUMBER_ID' column disappeared in Simbad.query_region() after v0.4.8 update

Hello there,
it appears that the v0.4.8 of astroquery deleted the column 'SCRIPT_NUMBER_ID' when using the function Simbad.query_region(). The column, introduced here (https://github.com/astropy/astroquery/issues/2047) was crucial to connect the unequivocally inputs and outputs of a query, by assigning each row a number corresponding to the i-th input region.

Apparently the column was renamed as 'object_number_id' in Simbad.query_objects() (https://github.com/astropy/astroquery/pull/2954). However, no such column exists for Simbad.query_region().

Would it be possible to restore this column (even with a different name)?

Thank you in advance for your the consideration. :)

Start by comparing the outputs of Simbad.query_region() and Simbad.query_objects(), using issue #2047 and pull request #2954 as context for the identifier column. Trace how query_region() builds its result and verify that the completed change restores an identifier linking each returned row to its input region.

Written by the indexing model from the issue text.