Creating a plugin marks the plugin enabled without loading it

The editor is required to restart for the Editor Toolbar Button plugin to appear. The plugin is enabled and the project is compiled, but the button does not appear.

After further discussions, we are marking this as a Regression from 4.15.2

1. Open a new C++ project
2. Open Plugin window through Edit > Plugins
3. Select New Plugin
4. Select Editor Toolbar Button
5. Name it NewTBButton
6. Select Create Plugin

Result: The editor marks plugin as enabled, but the button doesn't appear after hot reload

Expected Result: The new Editor Toolbar Button appears after the project compiles and hot reloads