That's an example of why I think it's absolutely pointless to wear a new pair of jeans for any length of time without washing them, whether unsanforized or sanforized, raw or one-wash. Washing may have some effect on the jeans' color, texture, etc. but so what? if you are gonna wash them at some, just wash them carefully before you start wearing them so you don't run into any surprises in the future.
The exception being if you plan to NEVER EVER wash them. That's gross.
I never posted any pics of my 634-XHS, size 33, from the DWC tux division. About 18+ months of wear, 20+ washes. I didn't follow the rules of posting monthly updates, so I suppose I was disqualified. I had RCFG taper them to 8.25" hem, and cut to 34" length. The did shrink quite a bit from new, and they were just too tight for me to deal with any longer. Now retired.
XHS is till my favorite IH denim, perhaps my favorite denim of all. I've stated it before, and I'll do so again: I'd love to see the 634-XHS details updated as per other 634 models, with double selvedge fly, tucked belt loops, lined rear pockets, and particularly the heaving gauge stitching that has been used in some areas. This denim deserves the extra attention to the finer details.
And just for reference, a fit when brand new:
