Only pass conptyInheritCursor for tasks

Part of #76548

src/vs/workbench/contrib/terminal/browser/terminalInstance.ts

@@ -1130,6 +1130,12 @@ export class TerminalInstance extends Disposable implements ITerminalInstance {
 			}
 		}
 
+		// HACK: Force initialText to be non-falsy for reused terminals such that the
+		// conptyInheritCursor flag is passed to the node-pty, this flag can cause a Window to hang
+		// in Windows 10 1903 so we only want to use it when something is definitely written to the
+		// terminal.
+		shell.initialText = ' ';
+
 		// Set the new shell launch config
 		this._shellLaunchConfig = shell; // Must be done before calling _createProcess()
 

src/vs/workbench/contrib/terminal/node/terminalProcess.ts

@@ -66,7 +66,8 @@ export class TerminalProcess extends Disposable implements ITerminalChildProcess
 			cols,
 			rows,
 			experimentalUseConpty: useConpty,
-			conptyInheritCursor: true
+			// This option will force conpty to not redraw the whole viewport on launch
+			conptyInheritCursor: useConpty && !!shellLaunchConfig.initialText
 		};
 
 		const cwdVerification = stat(cwd).then(async stat => {