Vlad Sudzilouski

@Abe27342, with turn-based flushing enabled, did you repro it using 2.0 bits or 1.0 bits? I'm not sure if it's the problem, but 1.0 (I think, maybe it was removed...

@DLehenbauer - any chance you can take a look? I have not look at details, but it feels like we should start with assumption that the bug is on SharedMatrix...

> When transitioning to writing summary trees under .channels sub-tree. We have to support loading from snapshot where summaries were not written under .channels sub-tree. This PR adds a fix...

@markfields, can you please add some description on why you are porting those, what is the risk, what happens if we forgo poring.

Related [internal document](https://microsoft.sharepoint-df.com/:fl:/g/contentstorage/CSP_554ca526-8a57-4053-b8ed-a05eaffae82a/EVgfWvUqKtRKgr3pSu1kHzYBkjbXf2fvs11ugKIFhATAHw?e=fFopss&nav=cz0lMkZjb250ZW50c3RvcmFnZSUyRkNTUF81NTRjYTUyNi04YTU3LTQwNTMtYjhlZC1hMDVlYWZmYWU4MmEmZD1iJTIxSnFWTVZWZUtVMEM0N2FCZXJfcm9LZ3FlYzBzZlMwTkZvV21BM3lvRUdXX3Etam5la3ZwZFNxTG5lT0x3alIxTiZmPTAxRks0V001MllENU5QS0tSSzJSRklGUFBKSkxXV0lIWlcmYz0lMkYmYT1Mb29wQXBwJnA9JTQwZmx1aWR4JTJGbG9vcC1wYWdlLWNvbnRhaW5lciZ4PSU3QiUyMnclMjIlM0ElMjJUMFJUVUh4dGFXTnliM052Wm5RdWMyaGhjbVZ3YjJsdWRDMWtaaTVqYjIxOFlpRktjVlpOVmxabFMxVXdRelEzWVVKbGNsOXliMHRuY1dWak1ITm1VekJPUm05WGJVRXplVzlGUjFkZmNTMXFibVZyZG5Ca1UzRk1ibVZQVEhkcVVqRk9mREF4UmtzMFYwMDFXVWhVUVVVeVVFSlZRMU5LUmxwT01sUlNVbGhRUjBWVFZ6TSUzRCUyMiUyQyUyMmklMjIlM0ElMjIyMjkxY2IzOC1mNDM4LTQ2MzUtYTdkYS1hZmZmOWVmMzIyODIlMjIlN0Q%3D):

I'd love to start with end-to-end example of usage, even if it does not compile. This would be so much better at demonstrating potential scenario and needs. What's not clear...