Cursor paginate uses incorrect column name for where on union

[thijsvdanker]

When using cursorPaginate on a query with a union the where clause on the union uses the wrong column name.

Table Post:

• id
• start_time

Table News:

• id
• created_at

Post::toBase()->select('id', 'start_time as created_at')->union(News::toBase()->select('id', 'created_at'))->orderBy('created_at')->cursorPaginate(10, ['created_at']);

Should sort Post by the start_time column and News by thecreated_at column.

The current implementation sorts both Post and News by the start_time column.

[thijsvdanker]

Test failed when initializing the containers.
Should be unrelated to this PR.

[chu121su12]

Can this be in to 10.x?

[driesvints]

Please send this to 10.x