From: https://issues.dlang.org/show_bug.cgi?id=15662#c4
Increasing array length may cause GC allocation with copy elements when the original capacity is not enough.
By fixing issue 10115, there's already a check for disabled default constructor, but not for disabled postblit. It's one another hole of semantics.
Comment #1 by robert.schadek — 2024-12-13T18:46:57Z