Issue with refresh

[fangxueliang1]

Expected behavior

Refresh report right away.

Actual behavior

First time not refresh, only second time will refresh.

Steps to reproduce the issue

Step 1. without signature, click save, display message for need signature --- it is correct.
Step 2. draw signature, click save again, display message for need signature again, report not fresh--- it is incorrect
Step 3. without signature, click save again, no message, report is fresh.

APEX version (4.2.6 / 5.0.3)

19.2

Used web server / version and platform (ORDS 3.0.3 / Tomcat 7 / Apache 2.4 / Linux x64)

Used web browser / version and platform (Chrome 48 Mac / Firefox 44 Windows)