diff --git a/swad_changelog.h b/swad_changelog.h
index c1d9af595..e7bca1464 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -497,7 +497,7 @@ enscript -2 --landscape --color --file-align=2 --highlight --line-numbers -o - *
 En OpenSWAD:
 ps2pdf source.ps destination.pdf
 */
-#define Log_PLATFORM_VERSION	"SWAD 19.186 (2020-04-14)"
+#define Log_PLATFORM_VERSION	"SWAD 19.186.1 (2020-04-14)"
 #define CSS_FILE		"swad19.146.css"
 #define JS_FILE			"swad19.172.1.js"
 /*
@@ -548,6 +548,7 @@ Funci
 // TODO: Oresti Baños: cambiar ojos por candados en descriptores para prohibir/permitir y dejar los ojos para poder elegir descriptores
 // TODO: Integrar pull requests con traducciones del alemán del usuario eruedin en GitHub
 
+	Version 19.186.1: Apr 14, 2020	Fixed bug in edition of test questions. (287379 lines)
 	Version 19.186:   Apr 14, 2020	New module swad_building for buildings in a centre. (287372 lines)
 					1 change necessary in database:
 CREATE TABLE IF NOT EXISTS buildings (BldCod INT NOT NULL AUTO_INCREMENT,CtrCod INT NOT NULL,ShortName VARCHAR(511) NOT NULL,FullName VARCHAR(2047) NOT NULL,Location VARCHAR(2047) NOT NULL,UNIQUE INDEX(BldCod),INDEX(CtrCod));
diff --git a/swad_test.c b/swad_test.c
index 4faff1430..429032dba 100644
--- a/swad_test.c
+++ b/swad_test.c
@@ -338,9 +338,17 @@ static void Tst_TstDestructor (struct Tst_Test *Test)
 
 static void Tst_ResetTags (struct Tst_Tags *Tags)
   {
+   unsigned IndTag;
+
    Tags->Num  = 0;
    Tags->All  = false;
    Tags->List = NULL;
+
+   /***** Initialize all tags in question to empty string *****/
+   for (IndTag = 0;
+	IndTag < Tst_MAX_TAGS_PER_QUESTION;
+	IndTag++)
+      Tags->Txt[IndTag][0] = '\0';
   }
 
 /*****************************************************************************/
@@ -3960,7 +3968,7 @@ static void Tst_PutFormEditOneQst (struct Tst_Question *Question)
       HTM_OPTION (HTM_Type_STRING,"",false,false,"&nbsp;");
       mysql_data_seek (mysql_res,0);
       TagFound = false;
-      for (NumTag = 1;
+      for (NumTag  = 1;
 	   NumTag <= NumTags;
 	   NumTag++)
         {