fix initiallizing currentFile

apps/remix-ide/src/app/tabs/compile-tab.js

@@ -114,7 +114,6 @@ class CompileTab extends CompilerApiMixin(ViewPlugin) { // implements ICompilerA
   }
 
   async onActivation () {
-    this.currentFile = await this.call('fileManager', 'file')
     super.onActivation()
     this.call('filePanel', 'registerContextMenuItem', {
       id: 'solidity',
@@ -125,6 +124,7 @@ class CompileTab extends CompilerApiMixin(ViewPlugin) { // implements ICompilerA
       path: [],
       pattern: []
     })
+    this.currentFile = await this.call('fileManager', 'file')
   }
 
   getCompilerParameters () {