signup: fix email sent logic for tempuser

Fixes #8656 and properly sets the email_sent and email_sent_on fields
for a tempuser (signup user).

pkg/services/sqlstore/temp_user_test.go

@@ -54,6 +54,19 @@ func TestTempUserCommandsAndQueries(t *testing.T) {
 				So(err, ShouldBeNil)
 			})
 
+			Convey("Should be able update email sent and email sent on", func() {
+				cmd3 := m.UpdateTempUserWithEmailSentCommand{Code: cmd.Result.Code}
+				err := UpdateTempUserWithEmailSent(&cmd3)
+				So(err, ShouldBeNil)
+
+				query := m.GetTempUsersQuery{OrgId: 2256, Status: m.TmpUserInvitePending}
+				err = GetTempUsersQuery(&query)
+
+				So(err, ShouldBeNil)
+				So(query.Result[0].EmailSent, ShouldBeTrue)
+				So(query.Result[0].EmailSentOn, ShouldHappenOnOrAfter, (query.Result[0].Created))
+			})
+
 		})
 	})
 }