Comment 0 for bug 1535444

Open the attached file.
- opening via CLI will hang inkscape before the GUI loads
- opening via file picker will hang the file picker if "Enable Preview" is checked
- opening via file picker if preview is not enabled will hang the GUI

Thread backtraces (taken by capturing the backtrace from gdb when interrupting the program) suggest that the problem is in 2geom:
#7 SBasis (this=0x7fffffffcc00) at ../../src/2geom/sbasis.h:112
#8 divide_by_sk (a=..., k=1) at ../../src/2geom/sbasis-geometric.cpp:57
#9 0x0000000000c62e06 in RescaleForNonVanishingEnds (MM=..., ZERO=0.0001) at ../../src/2geom/sbasis-geometric.cpp:109
#10 0x0000000000c64458 in Geom::unitVector (V_in=..., tol=tol@entry=0.01, order=order@entry=3) at ../../src/2geom/sbasis-geometric.cpp:229
#11 0x0000000000c659b7 in Geom::unitVector (V=..., tol=tol@entry=0.01, order=order@entry=3) at ../../src/2geom/sbasis-geometric.cpp:311
#12 0x00000000007b8f12 in Inkscape::LivePathEffect::LPEPowerStroke::doEffect_path (this=0x2b217a0, path_in=...) at ../../src/live_effects/lpe-powerstroke.cpp:573

- not reproduced with trunk rev <= 14355
- reproduced with trunk rev >= 14265
(no in-between builds available)