When we request the number of installations and/or the number of `sent messages` to be returned together with the application list, custom header are returned in the form of:

• activity_app_ {push_application_id}
  * devicecount_app_{push_application_id}
• activity_variant_ {variant_id}
  * devicecount_variant_{variant_id}

In my machine I have 2 applications that have the `pushApplicationID` in UPPERCASE.
When we request the list of PUSH_APPLICATIONS using the `rest/applications` endpoint, the `pushApplicationID` correctly UPPERCASE.
However, the headers contains lowercase pushApplicationID.