Fix a bug where ProgressPlugin is not working properly with MultiCompiler
Fix a bug where ProgressPlugin is not working properly with MultiCompiler

webpack/webpack,webpack/webpack,EliteScientist/webpack,webpack/webpack,SimenB/webpack,EliteScientist/webpack,NekR/webpack,NekR/webpack,SimenB/webpack,SimenB/webpack,webpack/webpack,SimenB/webpack