Um, actually, there is.
Check to see if ejector rod is screwed in completely, open cylinder, dump ammo and sweep for debris under the star with your finger, reload (with different ammo), resume gunfight. It takes a second or two longer that trb, but there's no trip to the gunsmith involved and the procedure was commonly taught.
Most people were never formally trained just aren't aware of it because it's so rarely needed.
That defineitly works. The only problem there is, if the ejector rod has backed out, and its shrouded, your probably done right there, as you wont be opening the cylinder to go any further, and you wont likely be getting it backed down to clear, with just your fingers.
I think one of the biggest issues I see with the revolvers is how people reload them, and most dont understand theres even a problem there.
Most of it is due to where and how they are shooting, and they seem to be more interested in recovering the brass, than anything else, and not really taking advantage of a training opportunity.
You should be dumping the brass with the muzzle up, and a smart rap on the ejection rod, and let the brass fall. That pretty much eliminates crap getting under the extractor star, which, even just a tiny bit, can cause you all sorts of misery.
Ejecting the rounds muzzle down, is slow, awkward, and allows any unburnt powder and other crap still in the case, to fall under the star as it comes out of the cylinder.
If youre doing the later, sooner or later, and especially if you arent thorough with you cleaning, the trigger/cylinder will start becoming hard to cycle, and even binding and the cylinder becomes hard to close, and even not lock up.