pub const MAX_MERGE_PATCH_DEPTH: usize = 32;Expand description
Maximum recursion depth for json_merge_patch application.
Beyond this depth the patch is silently ignored at the affected sub-tree:
the target value at that level is left unchanged. Mitigates stack DoS
from adversarial PatchObject values (bd:JMAP-sc1b.97). 32 levels
comfortably exceeds any legitimate JMAP /set update shape — the
deepest standard JMAP /set update shape (Email with nested
bodyStructure) tops out around 6 levels.