Bug: open pdfview link causes severe memory allocation [9.3.6 (9.3.6-60-gf3c137-elpaplus @ /home/firmart/.emacs.d/elpa/org-plus-contrib-20200427/)]

Bug: open pdfview link causes severe memory allocation [9.3.6 (9.3.6-60-gf3c137-elpaplus @ /home/firmart/.emacs.d/elpa/org-plus-contrib-20200427/)]

[Firmin Martin]

Hello,

After a package update (especially org-mode and pdf-tools), I remark two
changes about *pdfview links* :

1. Follow a *file link* doesn't open pdf with pdfview mode anymore,
   instead, it opens the pdf using the default system's pdf reader. 
2. Open *pdfview link* now causes severe memory allocation which freezes
   quickly my PC. 

I tested if it's pdftools issue, but it's not: editing a pdf opens
successfully the pdf with pdfview mode.

Emacs: GNU Emacs 26.3 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.8, cairo version 1.16.0) of 2020-01-13
Packages:
- Org mode version 9.3.6 (9.3.6-60-gf3c137-elpaplus @ /home/firmart/.emacs.d/elpa/org-plus-contrib-20200427/)
- pdf-tools version:     20200427.2136
- org-pdfview version: 20180225.1006

N.B. I just noticed that there is a relatively new package
     "org-pdftools" which may fix this behavior. But this is a severe bug
     that shouldn't happen.  

Best,

Firmin Martin