Partially revert "Don't override dialog y: values"

Nate Grahamrequested to merge
work/ngraham/partially-revert-bad-idea into master

This reverts one part of commit a0d31ca2.

Most of these dialogs didn't need to override the y: value, but the column configuration dialog did, since it's helpful to be able to see which columns are currently visible.

Restore that and add a comment explaining why it's there so no one removes it again in the future.

BUG: 505052 FIXED-IN: 6.3.6

@ahiemstra

Edited by Nate Graham

Merge request reports