Comment 0 for bug 1487424

(Trisquel 7.0, Inkscape r14313) The attached file causes Inkscape to freeze (become unresponsive) upon opening. Note that the second control point (10,4) lies at the very end of the single path.

Backtrace:
#0 _int_free (av=0x7ffff0406760 <main_arena>, p=0x808de70, have_lock=0) at malloc.c:3897
#1 0x0000000000c6fa1a in deallocate (this=<optimised out>, __p=<optimised out>) at /usr/include/c++/4.8/ext/new_allocator.h:110
#2 _M_deallocate (this=<optimised out>, __n=<optimised out>, __p=<optimised out>) at /usr/include/c++/4.8/bits/stl_vector.h:174
#3 ~_Vector_base (this=0x7fffffffa130, __in_chrg=<optimised out>) at /usr/include/c++/4.8/bits/stl_vector.h:160
#4 ~vector (this=0x7fffffffa130, __in_chrg=<optimised out>) at /usr/include/c++/4.8/bits/stl_vector.h:416
#5 ~SBasis (this=0x7fffffffa130, __in_chrg=<optimised out>) at ./2geom/sbasis.h:69
#6 RescaleForNonVanishingEnds (MM=..., ZERO=0.0001) at 2geom/sbasis-geometric.cpp:110
#7 0x0000000000c71018 in Geom::unitVector (V_in=..., tol=tol@entry=0.01, order=order@entry=3) at 2geom/sbasis-geometric.cpp:229
#8 0x00000000007a959d in Geom::touching_circle (curve=..., tol=0.01, t=0) at live_effects/lpe-powerstroke.cpp:111
#9 0x00000000007a9d7e in Inkscape::LivePathEffect::path_from_piecewise_fix_cusps (B=..., y=...,
    jointype=jointype@entry=Inkscape::LivePathEffect::LINEJOIN_EXTRP_MITER_ARC, miter_limit=4, tol=0.01) at live_effects/lpe-powerstroke.cpp:421
#10 0x00000000007ac5ef in Inkscape::LivePathEffect::LPEPowerStroke::doEffect_path (this=0x80f1990, path_in=...) at live_effects/lpe-powerstroke.cpp:637
#11 0x000000000073af8b in Inkscape::LivePathEffect::Effect::doEffect (this=0x80f1990, curve=0x80c2320) at live_effects/effect.cpp:519
#12 0x000000000058161a in SPLPEItem::performPathEffect (this=this@entry=0x80bf910, curve=curve@entry=0x80c2320) at sp-lpe-item.cpp:254
#13 0x000000000059fe70 in SPPath::update_patheffect (this=0x80bf910, write=<optimised out>) at sp-path.cpp:339
#14 0x00000000005a06db in SPPath::build (this=0x80bf910, document=<optimised out>, repr=<optimised out>) at sp-path.cpp:173
#15 0x000000000059939b in SPObject::invoke_build (this=0x80bf910, document=0x1e48680, repr=0x3e712b0, cloned=<optimised out>) at sp-object.cpp:725
#16 0x000000000059b3c0 in SPObject::build (this=this@entry=0x8108b40, document=document@entry=0x1e48680, repr=repr@entry=0x3e71580) at sp-object.cpp:698
#17 0x0000000000571b7b in SPItem::build (this=this@entry=0x8108b40, document=document@entry=0x1e48680, repr=repr@entry=0x3e71580) at sp-item.cpp:409