joined gene names, a possible pitfall to cause incorrect result?

[biocyberman]

Is chanjo aware of this problematic gene names, which may causes various problems for queries that base on gene names?

➤ gawk '{print $NF}' ccds.15.grch37p13.extended.bed|grep ','|head                                                                                                                                                                                 
NOX1,NOX1,NOX1
NOX1,NOX1,NOX1
NOX1,NOX1
NOX1,NOX1,NOX1
NOX1,NOX1,NOX1
NOX1,NOX1,NOX1
NOX1,NOX1,NOX1
NOX1,NOX1,NOX1
NOX1,NOX1,NOX1
NOX1,NOX1,NOX1
➤ gawk '{print $NF}' ccds.15.grch37p13.extended.bed|grep ','|wc -l                                                                                                                                                                                
66188

➤ gawk '{print $NF}' ccds.15.grch37p13.extended.bed|grep ','|sort|uniq|wc -l                                                                                                                                                                      
9290
➤ gawk '{print $NF}' ccds.15.grch37p13.extended.bed|grep ','|sort|uniq >problematic.gene.names.txt