NumberFormatException while copying the Asset in CMS with Long Integer name

One of the test cases is failing for the Hippo CMS 12 - QA Regression Test .

Steps to reproduce:

1. Launch CMS
2. Browse to Content
3. Select Asset from Document Type drop down
4. Create an Asset name like ast-1509532586229
5. Try to copy the same Asset

Expected: Asset should be able to copy

Actual: Exception occurs

Caused by: java.lang.NumberFormatException: For input string: "1509532639618"
[INFO] [talledLocalContainer] at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) ~[?:1.8.0_131]
[INFO] [talledLocalContainer] at java.lang.Integer.parseInt(Integer.java:583) ~[?:1.8.0_131]
[INFO] [talledLocalContainer] at java.lang.Integer.parseInt(Integer.java:615) ~[?:1.8.0_131]
[INFO] [talledLocalContainer] at org.hippoecm.frontend.editor.workflow.DefaultWorkflowPlugin$3.addOrIncrementFileNodeNameBaseNameSuffix(DefaultWorkflowPlugin.java:270) ~[hippo-cms-editor-frontend-5.1.0-SNAPSHOT.jar:5.1.0-SNAPSHOT]
[INFO] [talledLocalContainer] at org.hippoecm.frontend.editor.workflow.DefaultWorkflowPlugin$3.createNewFileNodeNameWithBaseNameSuffix(DefaultWorkflowPlugin.java:244) ~[hippo-cms-editor-frontend-5.1.0-SNAPSHOT.jar:5.1.0-SNAPSHOT]
[INFO] [talledLocalContainer] at org.hippoecm.frontend.editor.workflow.DefaultWorkflowPlugin$3.createRequestDialog(DefaultWorkflowPlugin.java:205) ~[hippo-cms-editor-frontend-5.1.0-SNAPSHOT.jar:5.1.0-SNAPSHOT]

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