Assuming that the outlet temperature from the combustion chamber is fixed by allowing enough fuel to be burnt with a fixed amount of air, is there a limit on the amount of superheated steam that could be injected into the combustion chamber of a gas turbine?

I have seen studies in the literature claiming to have steam-to-air ratios of more than 100%, while others claiming that a 20-25% limit exists on the steam-to-air ratio due to the flameout characteristics of the combustor.

Assume that the thermal energy source for steam generation is irrelevant (i.e., any amount of steam could generated whether from the flue gases or from other sources).