ensure we clear _before_ we execute when there is a race (#3177)

* updates

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* comment

Signed-off-by: Jess Frazelle <github@jessfraz.com>

---------

Signed-off-by: Jess Frazelle <github@jessfraz.com>

src-tauri/Cargo.lock

@@ -1206,7 +1206,7 @@ dependencies = [
 
 [[package]]
 name = "derive-docs"
-version = "0.1.20"
+version = "0.1.21"
 dependencies = [
  "Inflector",
  "convert_case 0.6.0",

src/lang/KclSingleton.ts

@@ -212,6 +212,8 @@ export class KclManager {
     this._cancelTokens.set(currentExecutionId, false)
 
     this.isExecuting = true
+    // Make sure we clear before starting again. End session will do this.
+    this.engineCommandManager?.endSession()
     await this.ensureWasmInit()
     const { logs, errors, programMemory } = await executeAst({
       ast,