`search_encode` not filtering properly

[bschilder]

search_encode doesn't always filter all results appropriately.

It also doesn't work when you supply variables instead of character strings.

Should return exactly 1 entry:

Returns too many

446 entries returned

meta <- search_encode(target =  c("H3K122","H3K27ac","H3K64ac"),
                      biosample_name = "K562",
                      organism = "Homo sapiens",
                      assembly = "GRCh38",
                      file_type = "narrowPeak",
                      output_type=c("replicated peaks"),
                      peaks_only = TRUE) 

But not filtering the "target" column correctly.

Returns none

0 entries returned.

marks <- c("H3K122","H3K27ac","H3K64ac")
meta <- search_encode(target =  marks,
                      biosample_name = "K562",
                      organism = "Homo sapiens",
                      assembly = "GRCh38",
                      file_type = "narrowPeak",
                      output_type=c("replicated peaks"),
                      peaks_only = TRUE)