Error when Recommend multiple and Unrecommend multiple build #4665

I find there is a difference between multiple recommend and just one recommend (similar to unrecommend).
Using the save function before or after the BuildListener may result in a difference in the final Status.

multiple recommend

Quickbuild.getInstance(BuildManager.class).save(build);
for (BuildListener listener: PluginManager.instance.getExtensions(BuildListener.class))
	listener.buildRecommended();

just one recommend

for (BuildListener listener: PluginManager.instance.getExtensions(BuildListener.class))
	listener.buildRecommended();
Quickbuild.getInstance(BuildManager.class).save(build);

Please correct logic and synchronized in all function

Track: https://track.pmease.com/browse/QB-4205