bug #4769 Previously set column aliases are destroyed if returned to the same table

Signed-off-by: Madhura Jayaratne <madhura.cj@gmail.com>

1 files changed, 8 insertions, 6 deletions

diff --git a/js/export.js b/js/export.js
index c468d664eb..b80c3dcebf 100644
--- a/js/export.js
+++ b/js/export.js
@@ -274,12 +274,14 @@ function aliasSelectHandler(event) {
         var outer = $inputWrapper[0].outerHTML;
         // Replace opening tags
         var regex = /<dummy_inp/gi;
-        var newTag = outer.replace(regex, '<input');
-        // Replace closing tags
-        regex = /<\/dummy_inp/gi;
-        newTag = newTag.replace(regex, '</input');
-        // Assign replacement
-        $inputWrapper.replaceWith(newTag);
+        if (outer.match(regex)) {
+            var newTag = outer.replace(regex, '<input');
+            // Replace closing tags
+            regex = /<\/dummy_inp/gi;
+            newTag = newTag.replace(regex, '</input');
+            // Assign replacement
+            $inputWrapper.replaceWith(newTag);
+        }
     } else if (type === '_tables') {
         $('.table_alias_select:visible').change();
     }