$ git clone -n https://src.fedoraproject.org/rpms/libheif.git /var/lib/mock/f40-build-774016-127559/root/chroot_tmpdir/scmroot/libheif
Cloning into '/var/lib/mock/f40-build-774016-127559/root/chroot_tmpdir/scmroot/libheif'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/libheif.git/': Error in the HTTP2 framing layer