CCActionScaleTo broken for duration < 1.0f

[tangogrowler]

For durations less than 1.0f, CCActionScaleTo doesn't do anything. Also affects CCActionScaleBy

eg.
Broken: [CCActionScaleTo actionWithDuration:0.95f scale:0.5f];

Working: [CCActionScaleTo actionWithDuration:1.f scale:0.5f];

Using SB: 1.4.9 and associated Cocos2d version