Hold the read lock while reading the child graph, then walk over the children without any lock, in order to avoid deadlock. Upstream-commit: 20881f1f787e093a6f3e9360624d8b436b9f7379 Component: engine
Hold the read lock while reading the child graph, then walk over the children without any lock, in order to avoid deadlock. Upstream-commit: 20881f1f787e093a6f3e9360624d8b436b9f7379 Component: engine