PropertyLine.getPropertyType returns String even if no type was specified

in the light of SLING-10219 i noticed that PropertyLine.getPropertyType always returns a type even if the original repoinit statement was in the form

  set aStringMultiValue to "one", "two", "three"

i.e. didn't specify a type (which is then silently assumed to be the default String).
while it probably doesn't make a difference it doesn't allow to generated the exact same repo-init statements from the "SetProperty" operation.