Fix the verbose partial #559

Author: Gergan Penkov

core/lib/object_factory.js

@@ -59,7 +59,7 @@ var Pattern = function (relPath, data, patternlab) {
 
   // Let's calculate the verbose name ahead of time! We don't use path.sep here
   // on purpose. This isn't a file name!
-  this.verbosePartial = this.subdir + '/' + this.fileName;
+  this.verbosePartial = this.subdir.split(path.sep).join('/') + '/' + this.fileName;
 
   this.isPattern = true;
   this.isFlatPattern = this.patternGroup === this.patternSubGroup;

core/lib/pattern_assembler.js

@@ -34,7 +34,7 @@ var pattern_assembler = function () {
     for (var i = 0; i < patternlab.patterns.length; i++) {
       switch (partialName) {
         case patternlab.patterns[i].relPath:
-        case patternlab.patterns[i].subdir + '/' + patternlab.patterns[i].fileName:
+        case patternlab.patterns[i].verbosePartial:
           return patternlab.patterns[i];
       }
     }

core/lib/pattern_registry.js

@@ -62,7 +62,7 @@ PatternRegistry.prototype = {
     for (let thisPattern of patterns) {
       switch (partialName) {
         case thisPattern.relPath:
-        case thisPattern.subdir + '/' + thisPattern.fileName:
+        case thisPattern.verbosePartial:
           return thisPattern;
       }
     }