selectFeatures apparently not working on first feature in a dfm

[kbenoit]

selectFeatures() should remove "My" as a feature but does not. Bug for the first feature in the dfm??

myDfm <- dfm(c("My Christmas was ruined by your opposition tax plan.",
               "Does the United_States or Sweden have more progressive taxation?"),
             toLower = FALSE, verbose = FALSE)
selectFeatures(myDfm, "My", "remove")
# Document-feature matrix of: 2 documents, 18 features.
#2 x 18 sparse Matrix of class "dfmSparse"
# features
# docs    My Christmas was ruined by your opposition tax plan Does the United_States or Sweden have
# text1  1         1   1      1  1    1          1   1    1    0   0             0  0      0    0
# text2  0         0   0      0  0    0          0   0    0    1   1             1  1      1    1
# features
# docs    more progressive taxation
# text1    0           0        0
# text2    1           1        1