diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/util/ThreadLocalRequestScopePropagator.java b/gerrit-server/src/main/java/com/google/gerrit/server/util/ThreadLocalRequestScopePropagator.java
index 403701a44b..581ccc1483 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/util/ThreadLocalRequestScopePropagator.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/util/ThreadLocalRequestScopePropagator.java
@@ -74,6 +74,13 @@ public abstract class ThreadLocalRequestScopePropagator<C>
   /**
    * Returns a new context object based on the passed in context that has no
    * request scoped objects initialized.
+   * <p>
+   * Note that some code paths expect request-scoped objects like
+   * {@code CurrentUser} to be constructible starting from just the context
+   * object returned by this method. For example, in the SSH scope, the context
+   * includes the {@code SshSession}, which is used by
+   * {@code SshCurrentUserProvider} to construct a new {@code CurrentUser} in
+   * the new thread.
    *
    * @param ctx the context to continue.
    * @return a new context.