make new-sources fails on rawhide: curl issue?

[TASAKA Mamoru]

Hello, all:

Currently I am using rawhide. Yesterday and Today I tried to upgrade cairo-dock,
however "make new-sources" or "make upload" won't succeed like

[tasaka1 at localhost devel]$ env LANG=C make new-sources FILES=~/rpmbuild/SOURCES/cairo-dock-2.4.0~2.tar.gz
ERROR: could not check remote file status
make: *** [upload] Error 255

After some investigation I've found that the following command (appears in 
upload-check in Makefile.common) was failing:

[tasaka1 at localhost devel]$ rpm -q curl
curl-7.23.0-2.fc17.i686
[tasaka1 at localhost devel]$ curl -k --cert /home/tasaka1/.rpmfusion.cert -F tree=free -F name=cairo-dock -F md5sum=2407e97b74a97c383dd7ef4f0c83a206 -F filename=/home/tasaka1/rpmbuild/SOURCES/cairo-dock-2.4.0~2.tar.gz https://cvs.rpmfusion.org/repo/pkgs/upload.cgi ; echo $?
curl: (56) SSL read: errno -12229
56

With just curl downgraded to F-16 one:
[tasaka1 at localhost devel]$ rpm -q curl
curl-7.21.7-5.fc16.i686
[tasaka1 at localhost devel]$ curl -k --cert /home/tasaka1/.rpmfusion.cert -F tree=free -F name=cairo-dock -F md5sum=2407e97b74a97c383dd7ef4f0c83a206 -F filename=/home/tasaka1/rpmbuild/SOURCES/cairo-dock-2.4.0~2.tar.gz https://cvs.rpmfusion.org/repo/pkgs/upload.cgi ; echo $?
Missing
0

So:
* Does this mean that curl usage changed in 7.23.0 (i.e. Makefile.common needs fixing)?
* Or is this a bug on curl (so I should report this on redhat bugzilla)?

Thank you in advance.
Regards,
Mamoru