i've had some new internal doors fitted and put victorian style door knobs on them from Wickes. All 3 sets seem to be only mildly spring-loaded in that i tend to need to turn one way to open, then when i shut it i have to turn handle the other way to release the bolt, i've spayed wd40. All 3 sets are like this, is this what i should expect or should the bolt to return completely when i release the handle ? The carpenters work looks good.