Can not add multiple blog entries use the same image

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X, 7.3.1 CE GA2, Master
• Fix Version/s: 7.1.10 DXP FP18, 7.1.10.5 SP5, 7.1.X, 7.2.10 DXP FP5, 7.2.10.2 DXP SP2, 7.2.X, 7.3.10 DXP GA1, Master
• Component/s: Blogs
• Labels:
  • liferay-dxp-71-sp5
  • liferay-dxp-72-sp2
  • liferay-fixpack-dxp-18-7110
  • liferay-fixpack-dxp-5-7210
• Branch Version/s:
  7.2.x, 7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• Last Working Version:
  7.3.0 CE GA1
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/87515
• QA Test Name:
  • automated

Step to reproduce:

1. Site admin > Content & Data > Blogs > Entries tab
2. Click plus icon button
3. Select File > Blog Images tab > Select File
4. Upload an image
5. Type title and content
6. Publish
7. Click plus icon button
8. Select File > Blog Images tab
9. Click previous image card
10. Type title and content
11. Publish

Expected Results:
The second blog entry should be shown in Blogs admin.

Actual Results:
The second blog entry is not shown. And the following error is thrown in console.

2020-04-10 05:27:29.915 ERROR [http-nio-8080-exec-7][EditEntryMVCActionCommand:257] com.liferay.portal.kernel.exception.PortalException: Unable to get a unique file name for Apeach.png
com.liferay.portal.kernel.exception.PortalException: Unable to get a unique file name for Apeach.png
        at com.liferay.upload.web.internal.DefaultUniqueFileNameProvider.provide(DefaultUniqueFileNameProvider.java:48)
        at com.liferay.blogs.service.impl.BlogsEntryLocalServiceImpl._getUniqueFileName(BlogsEntryLocalServiceImpl.java:1753)
        at com.liferay.blogs.service.impl.BlogsEntryLocalServiceImpl._addProcessedImageFileEntry(BlogsEntryLocalServiceImpl.java:1616)
        at com.liferay.blogs.service.impl.BlogsEntryLocalServiceImpl._addCoverImageFileEntry(BlogsEntryLocalServiceImpl.java:1570)
        at com.liferay.blogs.service.impl.BlogsEntryLocalServiceImpl.addEntry(BlogsEntryLocalServiceImpl.java:367)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:66)
        at com.sun.proxy.$Proxy630.addEntry(Unknown Source)
        at com.liferay.blogs.service.BlogsEntryLocalServiceWrapper.addEntry(BlogsEntryLocalServiceWrapper.java:151)
        at com.liferay.blogs.reading.time.internal.service.BlogsReadingTimeEntryLocalServiceWrapper.addEntry(BlogsReadingTimeEntryLocalServiceWrapper.java:59)

Reproduced on:
Tomcat 9.0.33 + MySQL 5.7. Portal master GIT ID: b48f1db31351d462184cbc4c49b4f7fabfc09cd3.
Tomcat 9.0.33 + MySQL 5.7. Portal 7.3.1-CE-GA2.
Tomcat 9.0.33 + MySQL 5.7. Portal 7.2.x-private GIT ID: 964393363e2f48b0c4d95a05352ddf65a32dc544.

Cannot be reproduced on:
Tomcat 9.0.17 + MySQL 5.7. Portal 7.3.0-CE-GA1.
Tomcat 9.0.17 + MySQL 5.7. Portal 7.2.10-DXP-4.
Tomcat 9.0.33 + MySQL 5.7. Portal 7.1.x-private GIT ID: 26e946b6da654c0088fed9a66dfddd889603a0e9.
Tomcat 8.0.53 + MySQL 5.7. Portal 7.0.x-private GIT ID: 391618d5bc7f03211fa92e8dcdedd5bc4ea62265.