Description of problem:
After install rhev-hypervisor5-5.8-20120905.0.el5_8 correctly,check that not all packages are signed

Version-Release number of selected component (if applicable):
rhev-hypervisor5-5.8-20120905.0.el5_8

How reproducible:
100%

Steps to Reproduce:
1. Install rhev-hypervisor5-5.8-20120905.0.el5_8.
2. Verify that all packages are signed
  #rpm -qa --qf '%{name}-%{version}-%{release}.%{arch} (%{SIGPGP:pgpsig})\n' | grep -v "Key ID"
  

Actual results:
# rpm -qa --qf '%{name}-%{version}-%{release}.%{arch} (%{SIGPGP:pgpsig})\n' | grep -v "Key ID"
qcairo-debuginfo-1.8.7.1-3.el5.x86_64 ((not a blob))
qspice-debuginfo-0.3.0-54.el5_5.2.x86_64 ((not a blob))
filesystem-2.4.0-3.el5.x86_64 ((not a blob))
cracklib-dicts-2.8.9-3.3.x86_64 ((not a blob))
glibc-common-2.5-81.el5_8.7.x86_64 ((not a blob))
chkconfig-1.3.30.2-2.el5.x86_64 ((not a blob))
audit-libs-1.8-2.el5.x86_64 ((not a blob))
popt-1.10.2.3-28.el5_8.x86_64 ((not a blob))
nspr-4.9.1-4.el5_8.x86_64 ((not a blob))
bzip2-libs-1.0.3-6.el5_5.x86_64 ((not a blob))
libgcrypt-1.4.4-5.el5_8.2.x86_64 ((not a blob))
libcap-1.10-26.x86_64 ((not a blob))
libsysfs-2.1.0-1.el5.x86_64 ((not a blob))
...
...
...

Expected results:
After executed that command,it should return nothing and all packages are signed

Additional info:
The same issue occurs on rhev-hypervisor5-5.9-20120808.0.el5 & rhev-hypervisor5-5.8-20120808.0.el5_8, so it is not a regression bug.