hang: waiting for bundle read lock in yarn test

[dckc]

Describe the bug

A dev reports that they're experimenting with changes to the contract in dapp-offer-up. When running yarn test they see and endless series of

bundles/ waiting for bundle read lock: /Users/NNN/projects/learn/demo/contract/bundles/bundle-assetContract-js.lock in /Users/NNN/projects/learn/demo/contract/src/offer-up.contract.js

Steps to reproduce

the above is what we have

Expected behavior

tests should run

Platform environment

not reported

Additional context

• Mar 20 Office Hours: contract meta, zoe trading contraints, orchestration of bitcoin, upgrade-14, ... agoric-sdk#9118

also reported in endo:

• hang: waiting for bundle read lock endojs/endo#2163

cc @kbennett2000 @kriskowal

[dckc]

work-around: remove bundles directory

rm -rf bundles made the symptoms go away