Adding comments to explain the scenario that  `test_caching_bug` is testing.
Adding comments to explain the scenario that  `test_caching_bug` is testing.

SiPiggles/djangae,stucox/djangae,chargrizzle/djangae,chargrizzle/djangae,potatolondon/djangae,trik/djangae,potatolondon/djangae,wangjun/djangae,martinogden/djangae,SiPiggles/djangae,pablorecio/djangae,asendecka/djangae,leekchan/djangae,leekchan/djangae,armirusco/djangae,stucox/djangae,SiPiggles/djangae,kirberich/djangae,jscissr/djangae,kirberich/djangae,pablorecio/djangae,grzes/djangae,nealedj/djangae,kirberich/djangae,pablorecio/djangae,armirusco/djangae,grzes/djangae,leekchan/djangae,wangjun/djangae,nealedj/djangae,asendecka/djangae,armirusco/djangae,trik/djangae,stucox/djangae,chargrizzle/djangae,nealedj/djangae,martinogden/djangae,grzes/djangae,martinogden/djangae,trik/djangae,asendecka/djangae,wangjun/djangae,jscissr/djangae,jscissr/djangae