dedup cases where there is more than 1 antibody for a sample. added multi_antibody column to denote cases where this is true

README.md

@@ -138,9 +138,14 @@ configs:
       dtype: string
       description: Growth media composition
       role: experimental_condition
+    - name: multi_antibody
+      dtype: bool
+      description: TRUE if the set of replicates includes more than one type of antibody
     - name: antibody
       dtype: string
-      description: Antibody used for ChIP-exo immunoprecipitation
+      description: >-
+        Antibody used for ChIP-exo immunoprecipitation. If multi_antibody is TRUE,
+        then the antibodies in the set are separated by `;`
     - name: sample_id
       dtype: string
       description: Unique identifier combining regulator and replicates

rossi_2021_metadata_sample.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:a033c8b32656b6b38ecefb22a980a8f4d23737271ed84d8b0fb2262960916688
-size 16751
+oid sha256:f5c55948ea44d6784e550b8bb32bd2e2d9a004884b18f6229cba60080a108e88
+size 17020