@Nullable
	public String getReverseMethodMapping(@Nonnull String owner, @Nonnull String methodName, @Nonnull String methodDesc) {
		String originalOwnerName = getReverseClassMapping(owner);
		if (originalOwnerName == null)
			originalOwnerName = owner;

		// Get methods in the original class
		List<MethodMapping> methodMappings = methods.get(originalOwnerName);
		if (methodMappings == null || methodMappings.isEmpty())
			return null;

		// Find a matching method
		String originalDesc = reverseMapper.mapDesc(methodDesc);
		for (MethodMapping methodMapping : methodMappings) {
			// The current name must match the mappings "new" name
			if (!methodName.equals(methodMapping.getNewName()))
				continue;

			// The original method descriptor must match the mapping key's
			if (originalDesc.equals(methodMapping.getDesc()))
				return methodMapping.getOldName();
		}
		return null;
	}
@param owner
		Current class name.
@param methodName
		Current method name.
@param methodDesc
		Current method descriptor.

@return Original name of the method if any mappings exist.
{@code null} if the method has not been mapped.
recaf-core/src/main/java/software/coley/recaf/services/mapping/aggregate/AggregatedMappings.java