fix: Removed infinite loop in AltDateWidget

Fixes rjsf-team#3516 by removing the infinite loop caused by two `useEffects()` by moving the code for one into the `onChange` handler
- Updated `AltDateWidget` to switch to a simple `useState()` rather than `useReducer()` and moved the code for one `useEffect()` into the `onChange` handler
  - This change makes the code match the `antd` and `chakra-ui` versions
- Updated the `CHANGELOG.md` accordingly

CHANGELOG.md

@@ -16,6 +16,12 @@ should change the heading of the (upcoming) version to include a major version b
 
 -->
 
+# 5.3.1
+
+## @rjsf/core
+
+- Updated `AltDateWidget` to switch onChange handling of a single field to match the working code in `antd`, fixing [#3516](https://github.com/rjsf-team/react-jsonschema-form/issues/3516)
+
 # 5.3.0
 
 ## @rjsf/antd

packages/core/src/components/widgets/AltDateWidget.tsx

@@ -1,4 +1,4 @@
-import { MouseEvent, useCallback, useEffect, useReducer } from 'react';
+import { MouseEvent, useCallback, useEffect, useState } from 'react';
 import {
   ariaDescribedByIds,
   parseDateString,
@@ -115,26 +115,27 @@ function AltDateWidget<T = any, S extends StrictRJSFSchema = RJSFSchema, F exten
   value,
 }: WidgetProps<T, S, F>) {
   const { translateString } = registry;
-  const [state, setState] = useReducer((state: DateObject, action: Partial<DateObject>) => {
-    return { ...state, ...action };
-  }, parseDateString(value, time));
+  const [state, setState] = useState(parseDateString(value, time));
 
   useEffect(() => {
-    if (value && value !== toDateString(state, time)) {
-      setState(parseDateString(value, time));
-    }
-  }, [value, state, time]);
+    setState(parseDateString(value, time));
+  }, [time, value]);
 
-  useEffect(() => {
-    if (readyForChange(state)) {
-      // Only propagate to parent state if we have a complete date{time}
-      onChange(toDateString(state, time));
-    }
-  }, [state, time, onChange]);
+  const handleChange = useCallback(
+    (property: keyof DateObject, value: string) => {
+      const nextState = {
+        ...state,
+        [property]: typeof value === 'undefined' ? -1 : value,
+      };
 
-  const handleChange = useCallback((property: keyof DateObject, value: string) => {
-    setState({ [property]: value });
-  }, []);
+      if (readyForChange(nextState)) {
+        onChange(toDateString(nextState, time));
+      } else {
+        setState(nextState);
+      }
+    },
+    [onChange, state, time]
+  );
 
   const handleSetNow = useCallback(
     (event: MouseEvent<HTMLAnchorElement>) => {