  We study the quantum fate of a naked curvature singularity sourced by a
scalar field via several methods and compare the results obtained. The first
method relies on relativistic quantum mechanics on a fixed background employing
the Klein--Gordon and the Dirac equations for a static spacetime. We show that
both the Klein--Gordon and the Dirac particles feel this singularity therefore
this method does not provide its resolution. For comparison, we subsequently
employ methods for quantizing the geometry itself. We selected the canonical
quantization via conditional symmetries and as a last approach we use a maximal
acceleration derivation in the covariant loop quantum gravity. In both of these
approaches the singularity is resolved at the quantum level. We discuss these
conflicting results bearing in mind that quantum particles probe classical
geometry in the first approach while the last two methods quantize the geometry
itself.
