FRISIAN SEA turning in the Thames

The vessel FRISIAN SEA arriving on the Thames from Schiedam Netherlands on the 14/7/2023. She was on her way to Tilbury Docks but had to wait for the bulk carrier DAI SHAN HAI to clear the locks. She therefore turned in the river proceeded downriver and turned again to resume her original course. I have taken shipping photos on the Thames for more than 60 years but never seen this happen. FRISIAN SEA was built in 2013 at 4,298 gt.