Version 2.4.1 extension crash

Given the following in the Docker file:

RUN --mount=type=secret,id=registry-pat,env=REGISTRY_PAT \
    --mount=type=secret,id=registry-username,env=REGISTRY_USERNAME \
    echo -e "$YARN_REGISTRY:username=$REGISTRY_USERNAME\n$YARN_REGISTRY:_password=$(echo -n $REGISTRY_PAT | base64 --wrap=0)" > .npmrc

comment the last line during debugging session, i.e. # echo -e ...

Experience extension crash:

TypeError: Cannot read properties of undefined (reading 'getRange')
    at Cg.getHeredocs (/[REDACTED]/.vscode/extensions/ms-azuretools.vscode-containers-2.4.1/dist/dockerfile-language-server-nodejs/lib/server.js:56:96)
    at Cg.getHeredocs (/[REDACTED]/.vscode/extensions/ms-azuretools.vscode-containers-2.4.1/dist/dockerfile-language-server-nodejs/lib/server.js:76:5086)
    at Validator.getHeredocLines (/[REDACTED]/.vscode/extensions/ms-azuretools.vscode-containers-2.4.1/dist/dockerfile-language-server-nodejs/lib/server.js:91:6128)
    at Validator.validateInstruction (/[REDACTED]/.vscode/extensions/ms-azuretools.vscode-containers-2.4.1/dist/dockerfile-language-server-nodejs/lib/server.js:91:6764)
    at Validator.validate (/[REDACTED]/.vscode/extensions/ms-azuretools.vscode-containers-2.4.1/dist/dockerfile-language-server-nodejs/lib/server.js:91:5631)
    at Object.validate (/[REDACTED]/.vscode/extensions/ms-azuretools.vscode-containers-2.4.1/dist/dockerfile-language-server-nodejs/lib/server.js:91:45615)
    at t.validate (/[REDACTED]/.vscode/extensions/ms-azuretools.vscode-containers-2.4.1/dist/dockerfile-language-server-nodejs/lib/server.js:192:4569)
    at /[REDACTED]/.vscode/extensions/ms-azuretools.vscode-containers-2.4.1/dist/dockerfile-language-server-nodejs/lib/server.js:192:11460

Node.js v22.22.1
[Error - 14:21:46] Server process exited with code 1.
[Error - 14:21:46] The Dockerfile Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.

I understand this is due to trailing backslash on the previous line, but ideally extension should be capable of recovering from such failures while developer is removing trailing slash.

At the moment the workaround is to remove trailing slash, then go to Extensions and disable/enable the extension.

Reproduce the crash with the shown Dockerfile, especially the commented final line and trailing continuation backslash, then trace the Dockerfile Language Server stack shown in the report. Done means the extension no longer exits when the Dockerfile is temporarily invalid and recovers without disabling and re-enabling the extension.