update comment

Author: slax57

packages/ra-core/src/form/useWarnWhenUnsavedChanges.tsx

@@ -57,7 +57,8 @@ export const useWarnWhenUnsavedChanges = (
                 tx.retry();
             } else {
                 if (isSubmitting) {
-                    // Retry the transition in 100ms, until the form is no longer submitting
+                    // Retry the transition (possibly several times) until the form is no longer submitting.
+                    // The value of 100ms is arbitrary, it allows to give some time between retries.
                     setTimeout(() => {
                         tx.retry();
                     }, 100);