Merge pull request #563 from /issues/550

Use the same object for this.mods and this.ctx.mods within default mode

blocks-common/i-bem/__html/i-bem__html.bemhtml

@@ -270,7 +270,7 @@ this._mode === '' {
             this.block = vBlock || (vElem ? block : undefined),
             this._currBlock = vBlock || vElem ? undefined : block,
             this.elem = this.ctx.elem,
-            this.mods = (vBlock ? this.ctx.mods : this.mods) || {},
+            this.mods = vBlock? this.ctx.mods || (this.ctx.mods = {}) : this.mods,
             this.elemMods = this.ctx.elemMods || {}
         ) {
             (this.block || this.elem) ?

blocks-common/i-bem/__html/test/files/i-bem/gh-550.bemhtml

@@ -0,0 +1,6 @@
+block b1, default: {
+    this.mods.foo = 'bar';
+    applyNext();
+}
+
+block b1, mod foo bar, content: 'foo bar';

blocks-common/i-bem/__html/test/files/i-bem/gh-550.html

@@ -0,0 +1 @@
+<div class="b1 b1_foo_bar">foo bar</div>

blocks-common/i-bem/__html/test/files/i-bem/gh-550.json

@@ -0,0 +1,3 @@
+{
+    "block": "b1"
+}

blocks-common/i-bem/__html/test/i-bem-test.js

@@ -46,4 +46,5 @@ suite('i-bem block and others', function() {
   unit('condition regression #239', 'gh-239', true);
   unit('simple types regression #254', 'gh-254');
   unit('applyNext in content regression #289', 'gh-289');
+  unit('mods redefinition #550', 'gh-550');
 });