The Devart provider seems to be shared across the websites
After the ColumnTypeCasingConventionCompatibility option is set, it determines the behaviour of the current application domain (web site). The process (web server) may run several application domains with different values of ColumnTypeCasingConventionCompatibility.
The value of ColumnTypeCasingConventionCompatibility for the particular application domain depends on the Fluent Mapping property of the DbContext template used for the model in web site. Fluent Mapping=true must be used with ColumnTypeCasingConventionCompatibility=true, and vice versa: Fluent Mapping=false must be used with ColumnTypeCasingConventionCompatibility=false.
You can set ColumnTypeCasingConventionCompatibility for a web site in the following alternative ways:
a) in your code before the first usage of the context (e.g., in a static constructor of the context or in the Main method of your program, etc)
b) in *.config. For example:
<configuration>
<configSections>
<section name="Devart.Data.Oracle.Entity"
type="Devart.Data.Oracle.Entity.Configuration.OracleEntityProviderConfigurationSection,
Devart.Data.Oracle.Entity, Version=7.5.179.0, Culture=neutral,
PublicKeyToken=09af7300eec23701" />
</configSections>
<Devart.Data.Oracle.Entity xmlns="http://devart.com/schemas/Devart.Data.Oracle.Entity/1.0">
<CodeFirstOptions ColumnTypeCasingConventionCompatibility="true"/>
</Devart.Data.Oracle.Entity>
</configuration>