Merge pull request '修复bug' (#1673) from fix-1657 into V20220328

Reviewed-on: https://git.openi.org.cn/OpenI/aiforge/pulls/1673
Reviewed-by: lewis <747342561@qq.com>

models/repo_statistic.go

@@ -17,7 +17,7 @@ type RepoStatistic struct {
 	IsPrivate            bool               `json:"isPrivate"`
 	IsMirror             bool               `json:"isMirror"`
 	IsFork               bool               `json:"isFork"`
-	RepoCreatedUnix      timeutil.TimeStamp `xorm:"NOT NULL" json:"createUnix"`
+	RepoCreatedUnix      timeutil.TimeStamp `xorm:"NOT NULL DEFAULT 0" json:"createUnix"`
 	Date                 string             `xorm:"unique(s) NOT NULL" json:"date"`
 	NumWatches           int64              `xorm:"NOT NULL DEFAULT 0" json:"watch"`
 	NumWatchesAdded      int64              `xorm:"NOT NULL DEFAULT 0" json:"-"`