fix issue

templates/explore/datasets.tmpl

@@ -121,7 +121,7 @@
 								<i class="dropdown icon"></i>
 								</span>
 								<div class="menu">
-										<a class="{{if eq .SortType "default"}}active{{end}} item" href="{{$.Link}}?sort=newest&q={{$.Keyword}}&tab={{$.TabName}}&category={{$.Category}}&task={{$.Task}}&license={{$.License}}&recommend={{$.Recommend}}">{{.i18n.Tr "repo.issues.filter_sort.default"}}</a>
+										<a class="{{if eq .SortType "default"}}active{{end}} item" href="{{$.Link}}?sort=default&q={{$.Keyword}}&tab={{$.TabName}}&category={{$.Category}}&task={{$.Task}}&license={{$.License}}&recommend={{$.Recommend}}">{{.i18n.Tr "repo.issues.filter_sort.default"}}</a>
 									<a class="{{if eq .SortType "newest"}}active{{end}} item" href="{{$.Link}}?sort=newest&q={{$.Keyword}}&tab={{$.TabName}}&category={{$.Category}}&task={{$.Task}}&license={{$.License}}&recommend={{$.Recommend}}">{{.i18n.Tr "repo.issues.filter_sort.latest"}}</a>
 									<a class="{{if eq .SortType "oldest"}}active{{end}} item" href="{{$.Link}}?sort=oldest&q={{$.Keyword}}&tab={{$.TabName}}&category={{$.Category}}&task={{$.Task}}&license={{$.License}}&recommend={{$.Recommend}}">{{.i18n.Tr "repo.issues.filter_sort.oldest"}}</a>
 									<a class="{{if eq .SortType "recentupdate"}}active{{end}} item" href="{{$.Link}}?sort=recentupdate&q={{$.Keyword}}&tab={{$.TabName}}&category={{$.Category}}&task={{$.Task}}&license={{$.License}}&recommend={{$.Recommend}}">{{.i18n.Tr "repo.issues.filter_sort.recentupdate"}}</a>