EXIF metadata SubjectDistance bug

Hi.
I've just discovered that Lightromm 3.3 RC1 and earlier wrongly displays SubjectDistance EXIF tag if camera focus distance was set to infinity.
According to EXIF specification SubjectDistance tag is stored using two numbers - nominator and denominator.
And if numerator is zero - subject distance should be reported as unknown and if it is set to 0xFFFFFFFF - subject distance is infinity.
But instead of displaying infinity - lightroom shown numeric value.
For example in my photo I have nominator equal to 0xFFFFFFFF and denominator equal to 1000.
Lightroom reports distance of 4.29 Mm (million of meters 0xFFFFFFFF/1000 = 4294967295/1000 = 4.29*10^6), which is numerically right, but should be reported as infinity.

Still not fixed in LR 3.4
Lightroom reports infinity only if the resulting value of SubjectDistance is 0xFFFFFFFF (numerator is 0xFFFFFFFF and denominator is 1).
With any other denominator value it reports numerical value, which is wrong.
EXIF 2.2 specification says:
SubjectDistance
The distance to the subject, given in meters. Note that if the numerator of the recorded value is FFFFFFFF.H,Infinity shall be indicated; and if the numerator is 0, Distance unknown shall be indicated.
So infinity SHOULD be reported with any denominator value, if numerator is 0xFFFFFFFF, but Lightroom reports that SubjectDistance is infinity only if denominator is equal to 1.

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Tag Name
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MacroMode
int16s
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5
ContinuousDrive
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FocusMode
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5 = TIF+JPEG
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10
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1 = Medium
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18 = Foliage
19 = Indoor
20 = Fireworks
21 = Beach
22 = Underwater
23 = Snow
24 = Kids & Pets
25 = Night Snapshot
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28 = Still Image
30 = Color Accent
31 = Color Swap
32 = Aquarium
33 = ISO 3200
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2 = 4x
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int16s
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14
Saturation
int16s
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15
Sharpness
int16s
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int16s
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22
LensType
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LongFocal
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24
ShortFocal
int16u
25
FocalUnits
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26
MaxAperture
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27
MinAperture
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28
FlashActivity
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29
FlashBits
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32
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1 = Continuous
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33
AESetting
int16s
0 = Normal AE
1 = Exposure Compensation
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3 = AE Lock + Exposure Comp.
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34
ImageStabilization
int16s
0 = Off
1 = On
2 = On, Shot Only
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35
DisplayAperture
int16s
36
ZoomSourceWidth
int16s
37
ZoomTargetWidth
int16s
39
SpotMeteringMode
int16s
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40
PhotoEffect
int16s
0 = Off
1 = Vivid
2 = Neutral
3 = Smooth
4 = Sepia
5 = B&W
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41
ManualFlashOutput
int16s
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0x500 = Full
0x502 = Medium
0x504 = Low
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42
ColorTone
int16s
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46
SRAWQuality
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