Description of problem: As approx a month ago, libgit2 crashes when cloning https repositories. It happens in F30 and F31, but not F32.

Version-Release number of selected component (if applicable): libgit2-devel-0.28.4-2.fc31.x86_64

How reproducible: Every time

Steps to Reproduce: below an example program. 

#include <git2.h>
#include <stdlib.h>
#include <stdio.h>

int main(){
	git_libgit2_init();
	git_repository *repo = NULL;
	int err = git_clone(&repo, "https://github.com/ropensci/antiword", "antiword", NULL);
	if (err < 0) {
		const git_error *e = git_error_last();
		printf("Error %d/%d: %s\n", err, e->klass, e->message);
		exit(err);
	}
	return 0;
}


Compile with: gcc test.c -lgit2


Actual results: crash


Expected results: cloned repository


Additional info: gdb suggests the problem may be related to libhttp-parser. Backtrace:

Program received signal SIGSEGV, Segmentation fault.
0x00007fa6a629e9f8 in on_header_field () from /lib64/libgit2.so.28
Missing separate debuginfos, use: dnf debuginfo-install http-parser-2.9.3-1.fc31.x86_64 libgit2-0.28.4-2.fc31.x86_64 libssh2-1.9.0-3.fc31.x86_64 openssl-libs-1.1.1d-2.fc31.x86_64 zlib-1.2.11-20.fc31.x86_64
(gdb) bt
#0  0x00007fa6a629e9f8 in on_header_field () from /lib64/libgit2.so.28
#1  0x00007fa6a5c8b1a2 in http_parser_execute () from /lib64/libhttp_parser.so.2
#2  0x00007fa6a62a083a in http_stream_read () from /lib64/libgit2.so.28
#3  0x00007fa6a62a1f05 in git_smart.recv_cb () from /lib64/libgit2.so.28
#4  0x00007fa6a62a40d0 in git_smart.store_refs () from /lib64/libgit2.so.28
#5  0x00007fa6a62a2693 in git_smart.connect () from /lib64/libgit2.so.28
#6  0x00007fa6a62810b0 in git_remote.connect () from /lib64/libgit2.so.28
#7  0x00007fa6a6282a52 in git_remote_fetch () from /lib64/libgit2.so.28
#8  0x00007fa6a622188f in git_clone () from /lib64/libgit2.so.28
#9  0x000000000040119d in main (argc=1, argv=0x7ffca2e16378) at test.c:8