Docking animation for right side doesn't reappear after size adjustment while floating

Question

In my current layout, I have a table in a dock widget that is initially docked (right side). I adjust the contents of the QMainWindow by connecting a function to topLevelChanged() to fill the blank space while floating

self.log_dock.topLevelChanged.connect(self.resize_dock)

def resize_dock(self):
        layout = self.tb_utils.findChild(QtWidgets.QLayout)
        layout.setExpanded(True)
        self.adjustSize()

This works wonderfully - however; after doing so - I'm not entirely sure how to get it to redock to it's original position, or animate to expand the window again. If I manually adjust the QMainWindow slightly, it will allow the dock - or it can be moved into another dock area, and then moved back into position - but this is not ideal.

EDIT: New program using minimal reproducible example

from PyQt5 import uic
from PyQt5.QtWidgets import QApplication, QMainWindow, QLayout
import sys

gui = uic.loadUiType('dock_behavior.ui')[0]

class Window(QMainWindow, gui):
    def __init__(self):
        super(Window, self).__init__()
        self.setupUi(self)
        self._connectEvents()
        
    def _connectEvents(self):
        self.dockWidget.topLevelChanged.connect(self.resize_dock)
        self.show_dock.toggled.connect(self.enable_dock)
        
    def resize_dock(self):     
        self.adjustSize()        
        layout = self.toolBar.findChild(QLayout)
        layout.setExpanded(True)
                
    def enable_dock(self):
        self.dockWidget.toggleViewAction().trigger()
        
if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())

The GUI as produced by Qt Designer

<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>825</width>
    <height>600</height>
   </rect>
  </property>
  <property name="minimumSize">
   <size>
    <width>500</width>
    <height>600</height>
   </size>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <widget class="QFrame" name="frame">
    <property name="geometry">
     <rect>
      <x>19</x>
      <y>19</y>
      <width>461</width>
      <height>541</height>
     </rect>
    </property>
    <property name="minimumSize">
     <size>
      <width>461</width>
      <height>541</height>
     </size>
    </property>
    <property name="frameShape">
     <enum>QFrame::StyledPanel</enum>
    </property>
    <property name="frameShadow">
     <enum>QFrame::Raised</enum>
    </property>
    <widget class="QWidget" name="horizontalLayoutWidget">
     <property name="geometry">
      <rect>
       <x>19</x>
       <y>19</y>
       <width>411</width>
       <height>501</height>
      </rect>
     </property>
     <layout class="QHBoxLayout" name="horizontalLayout"/>
    </widget>
   </widget>
  </widget>
  <widget class="QToolBar" name="toolBar">
   <property name="windowTitle">
    <string>toolBar</string>
   </property>
   <property name="layoutDirection">
    <enum>Qt::RightToLeft</enum>
   </property>
   <attribute name="toolBarArea">
    <enum>TopToolBarArea</enum>
   </attribute>
   <attribute name="toolBarBreak">
    <bool>false</bool>
   </attribute>
   <addaction name="show_dock"/>
  </widget>
  <widget class="QDockWidget" name="dockWidget">
   <property name="minimumSize">
    <size>
     <width>291</width>
     <height>0</height>
    </size>
   </property>
   <attribute name="dockWidgetArea">
    <number>2</number>
   </attribute>
   <widget class="QWidget" name="dockWidgetContents"/>
  </widget>
  <action name="show_dock">
   <property name="checkable">
    <bool>true</bool>
   </property>
   <property name="text">
    <string>Show / Hide Dock</string>
   </property>
  </action>
 </widget>
 <resources/>
 <connections/>
</ui>