Discarding Container App draft does not disable editing of temporary property file until tab switch

[v-amyang]

OS: Win 11
Build Version: 20251017.1

Repro Steps:

1. In multiple revision mode, create and edit a Container App draft
2. Make some changes in the automatically opened property file (e.g, update maxReplicas)
3. Click ‘Discard draft’
4. Without switching tabs, verify that you can still continue editing the property file

Expect:
After discarding the draft, the property file should immediately close or become read-only with a message like “Draft discarded”, in order to preventing further edits

Actual:
After discarding the draft, the property file remains editable until the user switches to another tab, at which point the content disappears.
This creates a misleading impression that changes are still valid, even though they are not applied

[nturinski]

We can try using the command workbench.action.closeActiveEditor.

But it also a pretty edge case scenario so we can consider closing it.