New waterway - broken state

[FLHerne]

Last night I added \"River Weaver (Hunt's Lock Back Channel)\", but I got a couple of site errors when submitting actions and the resulting entries don't display correctly.

The waterway:
Appears on the map with some places not shown.
Page renders, but its line diagram is missing some 'places'.
https://canalplan.org.uk/waterway/prdf

Places on it:

Hunt's Lock Weir Entrance:
Pre-existing 'place', junction with the River Weaver (Main Line)
Appears on main map and the line diagrams for both waterways.
Page renders, but shows nothing relating to the Back Channel - no 'junction with' or line diagram for it.
https://canalplan.org.uk/place/ta2v

Riversdale Swing Bridge
Appears on main map but not on waterway line diagram, page doesn't render.
https://canalplan.org.uk/place/lu2r

Northwich Drydock
Appears on main map and waterway line diagram, page doesn't render.
https://canalplan.org.uk/place/ln9m

Northwich Railway Viaduct (Back Channel)
Doesn't appear on either map or line diagram, page doesn't render.
https://canalplan.org.uk/place/ntdq

Hunt's Lock Sluices
Appears on main map and waterway line diagram, page doesn't render.
https://canalplan.org.uk/place/li7k


I initially added Northwich Drydock as the new isolated 'place' to create the waterway to, then added Hunt's Lock Sluices using 'Add a place beyond...'. My impression was that this was when things started going badly wrong.

[after=15041]
Since the above post, the place pages have begun rendering but are missing a lot of content; all information/maps relating to the waterway is missing.

[Stephen Atty]

Can you raise this in the bug tracker.

Nick is aware as we got a swarm of error emails

He's already raised a related bug

https://canalplan.org.uk/bugtrack/view.php?id=1272