diff --git a/doc/bugs/tests_fail___40__gpg-agent_related__63____41___when_running_build_inside_singularity_container/comment_1_d36c27dca4d266d1e6639e3435198016._comment b/doc/bugs/tests_fail___40__gpg-agent_related__63____41___when_running_build_inside_singularity_container/comment_1_d36c27dca4d266d1e6639e3435198016._comment
index 584be21d7d..64da39ef67 100644
--- a/doc/bugs/tests_fail___40__gpg-agent_related__63____41___when_running_build_inside_singularity_container/comment_1_d36c27dca4d266d1e6639e3435198016._comment
+++ b/doc/bugs/tests_fail___40__gpg-agent_related__63____41___when_running_build_inside_singularity_container/comment_1_d36c27dca4d266d1e6639e3435198016._comment
@@ -32,4 +32,4 @@ which is 100 bytes. Add ".t/gpgtest/" and the name of the socket, and it's too
 long.
 
 Quick fix is to cd to /tmp or something before running the test suite.
-""]]
+"""]]
diff --git a/doc/bugs/tests_fail___40__gpg-agent_related__63____41___when_running_build_inside_singularity_container/comment_4_0cfd7d0d93d0747d42d20f13b788fe43._comment b/doc/bugs/tests_fail___40__gpg-agent_related__63____41___when_running_build_inside_singularity_container/comment_4_0cfd7d0d93d0747d42d20f13b788fe43._comment
new file mode 100644
index 0000000000..01cb516400
--- /dev/null
+++ b/doc/bugs/tests_fail___40__gpg-agent_related__63____41___when_running_build_inside_singularity_container/comment_4_0cfd7d0d93d0747d42d20f13b788fe43._comment
@@ -0,0 +1,16 @@
+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 4"""
+ date="2020-04-27T18:10:54Z"
+ content="""
+I guess your command there would need to be run in a directory /home/runner/work/datalad-extensions
+to replicate the path I saw earlier.
+
+I did try it, but the singulatriy pull is failing with "While pulling shub
+image: download did not succeed: 400 Bad Request".
+
+Running it in some directory like /tmp avoiding the problem
+more or less confirms my hypothesis that it's a socket path length
+problem. Both /tmp/build and /home/yoh/build are much shorter than
+/home/runner/work/datalad-extensions/datalad-extensions/build.
+"""]]