Builds failing after branch rename

[davidchisnall]

We renamed our default branch and replaced the default with a new branch of the same name, rebased on a newer version of upstream.

Expected Behavior

Triggering CI on the new default branch should run the CI task.

Real Behavior

We get an error that looks to be due to a stale cache:

https://cirrus-ci.com/build/4566387420561408

The error message is:

Error while loading tasks: INTERNAL: Failed to get diff for bbf1a1c9dfc5bb96ebd692afab9cebaaaa01e20a...771bc253da0b43719797fca6bce90839a542fe99!!

The first hash is the top of the old branch (now called cheriot-13 in the repo) the second is the current top of tree.

Related Info

This is a (tick one of the following):

• Website issue
  • Link to page:
• Task issue
• Initial checkout.

[davidchisnall]

Is there any way that we can work around this? An explicit cache clear, for example?