[DefaultEntityForm] Fix issue with concurrent load operations with cancel mechanism

--HG--
branch : v0.6.x
6 jobs for topic/v0.6.x/form-load in 4 minutes and 51 seconds (queued for 14 seconds)
Status Name Job ID Coverage
  Deps
passed Deps #503128

00:02:36

 
  Lint
passed Format #503130

00:01:08

passed Lint #503129

00:01:25

 
  Build
failed CanBuild #503253

00:00:49

failed CanBuild #503131

00:00:52

 
  Test
skipped Test #503132
 
Name Stage Failure
failed
CanBuild Build
ℹ 「atl」: Using typescript@3.7.5 from typescript
ℹ 「atl」: Using tsconfig.json from /builds/open-source/cwclientelements/tsconfig.json
Error in bail mode: Error: callback(): The callback was already called.
at context.callback (/builds/open-source/cwclientelements/node_modules/loader-runner/lib/LoaderRunner.js:106:10)
at processTicksAndRejections (node:internal/process/task_queues:96:5) Error: callback(): The callback was already called.
at context.callback (/builds/open-source/cwclientelements/node_modules/loader-runner/lib/LoaderRunner.js:106:10)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1