[pkg-gnupg-maint] Bug#837692: [gnupg1] fails to install with gnupg 1.4.20-6

[Christophe Trophime]

Package: gnupg1 
Version: 1.4.21-1 
Severity: normal 

--- Please enter the report below this line. --- 
To use singularity container, I need to install gnupg, gnupg2 and gnupg1. When trying to install gnupg1 on testing I had the following conflict: 

sudo apt-get --dry-run install gnupg1 gnupg gnupg2 
[sudo] password for xxx: 
Reading package lists... Done 
Building dependency tree 
Reading state information... Done 
gnupg is already the newest version (1.4.20-6). 
gnupg2 is already the newest version (2.1.11-7). 
gnupg2 set to manually installed. 
Some packages could not be installed. This may mean that you have 
requested an impossible situation or if you are using the unstable 
distribution that some required packages have not yet been created 
or been moved out of Incoming. 
The following information may help to resolve the situation: 

The following packages have unmet dependencies: 
gnupg1 : Breaks: gnupg (< 1.4.20-6+exp1) 
Breaks: gnupg:i386 (< 1.4.20-6+exp1) 
E: Unable to correct problems, you have held broken packages. 

--- System information. --- 
Architecture: amd64 
Kernel: Linux 4.6.0-1-amd64 

Debian Release: stretch/sid 
901 testing euler 
900 testing ftp.fr.debian.org 
500 stretch neurodebian.g-node.org 
500 data neurodebian.g-node.org 
1 testing www.deb-multimedia.org 

--- Package information. --- 
Package's Depends field is empty. 

Package's Recommends field is empty. 

Package's Suggests field is empty. 
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