Error with bioinfo_values longer than 400 chars

[Shettland]

Current definition of bioinfovalues is the following one:

class BioinfoAnalysisValue(models.Model):
    value = models.CharField(max_length=400, null=True, blank=True)

Therefore, values with more than 400 characters will fail, which is happening right now for instances of vcf_filename with multiple files, reaching 1000 characters.

One easy solution would be to change this type of field to model.TextField as it does not have a limited length, but it might impact performance.