Copy & paste between bibliographies including files

[alfureu]

JabRef 5.0-dev--snapshot--2019-04-26--master--841445739
Windows 10 10.0 amd64
Java 1.8.0_172

• I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists

Steps to reproduce the behavior:

1. Create bibliography biblio1.bib and biblio2.bib
2. Create an entry author_title_year with attached PDF in biblio1.bib
3. Copy entry in biblio1.bib and paste to biblio2.bib
4. The entry is copied, however, the PDF link is non-functional.

Desired behaviour:

• copy the attached file to the respective location defined in the bibliography properties and/or location of the bibliography file
• it should recognise and respect full and non-full path, e.g.
  • C:\biblio1\PDFs\ and C:\biblio2\PDFs\ depending where the bibliography is saved, if the properties are defined as PDFs\

[Siedlerchr]

I think this goes into the direction of #3953. There is also a discussion on this topic on why this is a complex operation.
Therefore I am closing this here as a Duplicate of #3953