The patch https://github.com/WebKit/WebKit/pull/27000 makes DebuggerManager._associateBreakpointsWithSourceCode always able to update a breakpoint's linked-to source code in order to prevent those source code objects becoming stale when e.g. the page reloads. However, as pointed out [in a code-review comment](https://github.com/WebKit/WebKit/pull/27000/files#r1609384544), this fix might cause issues when there are resources with the same URL/contentIdentifier coming from a sub-frame. Despite that perhaps being quite an unlikely scenario, we should consider improving that resource-updating logic and maybe apply the suggested fix in that comment.
<rdar://problem/129018314>
<rdar://problem/129018306>