RGBAlbedoSpectrum, RoundTripRec2020 fails with specific input

[renderdude]

Tested on OSX 10.15

In lldb:
br s -f color_test.cpp -l 159
r --test-filter RGBAlbedoSpectrum.*
expr rgb = pbrt::RGB(0.78594791889190674, 0.10324395447969437, 0.12402211874723434)
c

Outputs:
Expected: (std::abs(rgb.g - rgb2.g)) < (eps), actual: 0.0189345 vs 0.01
[ 0.7859479 0.103243954 0.12402212 ] vs [ 0.7817782 0.12217841 0.15022568 ] xyz [ 0.5410349 0.2971326 0.16278245 ]
/Users/mbolsta/test/pbrt-v4/src/pbrt/util/color_test.cpp:171: Failure
Expected: (std::abs(rgb.b - rgb2.b)) < (eps), actual: 0.0262036 vs 0.01
[ 0.7859479 0.103243954 0.12402212 ] vs [ 0.7817782 0.12217841 0.15022568 ] xyz [ 0.5410349 0.2971326 0.16278245 ]

[renderdude]

Posting consumed a '\' that's needed in the test-filter argument before the '*'