customized import service reloading not works

[kkorsakov]

After doing hot reload of customized ImportService columns() method is lost from metaclass.

Exception occurs at grails/plugins/imports/DefaultImporter.groovy:179

columns = delegate.columns(params, importLogId)

Log message

ERROR imports.ImportsController  - groovy.lang.MissingMethodException: No signature of method: com.emagine.ecom.ProductSkladImportService.columns() is applicable for argument types: (org.codehaus.groovy.grails.web.servlet.mvc.GrailsParameterMap, java.lang.String) values: [[entityName:productSklad, format:html, _submit:Обработать, controller:imports, ...], ...]
Possible solutions: getColumns(), columns__(java.lang.Object, java.lang.Object), column(java.lang.Object, java.lang.Object, java.lang.Object), collect()

Used version ":bulk-data-imports:0.1.1"