Webpack build for branch master: e57bfc9313

This commit is contained in:
Travis CI 2017-07-04 01:50:11 +00:00
parent 3e480ee4d8
commit 10daef809d
2 changed files with 2 additions and 2 deletions

View file

@ -1301,7 +1301,7 @@ class Util {
static mergeDefault(def, given) {
if (!given) return def;
for (const key in def) {
if (!{}.hasOwnProperty.call(given, key)) {
if (!{}.hasOwnProperty.call(given, key) && def[key] !== undefined) {
given[key] = def[key];
} else if (given[key] === Object(given[key])) {
given[key] = this.mergeDefault(def[key], given[key]);

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