Update app.py

app.py

@@ -217,6 +217,8 @@ Palette_img[:] = 128
 
 def submitPhoto(img, rooms, seshid):
     sesh = getSesh(seshid)
+    if sesh.seshid != seshid:
+        sesh.seshid = seshid
     print('submitPhoto reset rooms: ', rooms, seshid, sesh.seshid)
     sesh.current_img_signature = str(img.sum())
     sesh.img_data[sesh.current_img_signature] = img