On 2nd wizard page of Deploy docker image is a table containing env. variables passed to OpenShift deployment config when docker image is deployed. Currently it is allowed to create duplicates of environment variables (more variables with same name), but only the last one is processed = it is passed to deployment config. E.g. I created env. vars. envvar1=val1 and envvar1=val2, but in deployment config only val2 is located. We should forbidden created duplicates of environment variables with same name.