Merge branch 'develop' into wk_bugs
Merge branch 'develop' into wk_bugs
Update the qrcode judgement and repair the core data issue

二维码扫描对签名的判断逻辑和core data闪退问题修复
Merge branch 'wk_bugs' into develop
Merge branch 'develop' into wk_bugs
repair for the sign picture

签名图空白，修复
Merge branch 'wk_bugs' into develop