Defect #19019 (New): Plugin patch overriding priority

Hi,
In my redmine application i added some plugins while overriding a same patch in different plugin but it take priority with the top level i unable to run my bottom plugin patch.

For Example:

Plugin 'A'   Am writing patch for issues controller and issue before_save callBack
   plugin 'B'   Am overriding same issue controller patch and model before_save callBack

The above scenario Plugin 'A' patch's only running plugin 'B' code does't run

Any one have any solution for this?