When there is a property hst:parameternameprefixes on a component that gets its parameter names/value changed, the name/value pairs cannot be read in the hst model any more

hst:parameternameprefixes is a feature of the 7.8 and behavioral targeting. However, when this property is present, it must be of equal length with parameter names and values.

However, when the template composer sets new parameter names/values. then when the hst:parameternameprefixes is untouched, the hst model cannot read the name/value pairs any more when hst:parameternameprefixes is not of equal length any more.

Hence, log a warning when hst:parameternameprefixes is present, and then remove it: It is not supported in the 7.7 any way