Merge branch 'qlhelp-preview' of https://github.com/mgsium/vscode-codeql into qlhelp-preview

Author: mgsium

extensions/ql-vscode/CHANGELOG.md

@@ -7,7 +7,7 @@
 - Fix a bug with importing large databases. Databases over 4GB can now be imported directly from LGTM or from a zip file. This functionality is only available when using CodeQL CLI version 2.6.0 or later. [#971](https://github.com/github/vscode-codeql/pull/971)
 - Replace certain control codes (`U+0000` - `U+001F`) with their corresponding control labels (`U+2400` - `U+241F`)  in the results view. [#963](https://github.com/github/vscode-codeql/pull/963)
 - Allow case-insensitive project slugs for GitHub repositories when adding a CodeQL database from LGTM. [#978](https://github.com/github/vscode-codeql/pull/961)
-- Add a _CodeQL: Preview Query Help_ command to generate Markdown previews of `.qhelp` query help files. See https://codeql.github.com/docs/codeql-cli/testing-query-help-files for more information about query help. [#988](https://github.com/github/vscode-codeql/pull/988)
+- Add a _CodeQL: Preview Query Help_ command to generate Markdown previews of `.qhelp` query help files. This command should only be run in trusted workspaces. See https://codeql.github.com/docs/codeql-cli/testing-query-help-files for more information about query help. [#988](https://github.com/github/vscode-codeql/pull/988)
 - Make "Open Referenced File" command accessible from the active editor menu. [#989](https://github.com/github/vscode-codeql/pull/989)
 
 ## 1.5.6 - 07 October 2021

extensions/ql-vscode/src/extension.ts

@@ -501,7 +501,7 @@ async function activateWithInstalledDistribution(
     selectedQuery: Uri
   ): Promise<void> {
     // selectedQuery is unpopulated when executing through the command palette
-    const pathToQhelp =  selectedQuery ? selectedQuery.fsPath : window.activeTextEditor!.document.uri.fsPath;
+    const pathToQhelp =  selectedQuery ? selectedQuery.fsPath : window.activeTextEditor?.document.uri.fsPath;
     if(pathToQhelp) {
       // Create temporary directory
       const relativePathToMd = path.basename(pathToQhelp, '.qhelp') + '.md';