[io] Do not serve unread blocks from the cache after a read error - #23832

[io] Do not serve unread blocks from the cache after a read error#23832

chrisburr wants to merge 2 commits into

root-project:masterroot-project/root:masterfrom

chrisburr:io-cache-failed-readbufferschrisburr/root:io-cache-failed-readbuffersCopy head branch name to clipboard