$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-CheckLib.git /var/lib/mock/f45-build-23068-595/root/chroot_tmpdir/scmroot/perl-Devel-CheckLib
Cloning into '/var/lib/mock/f45-build-23068-595/root/chroot_tmpdir/scmroot/perl-Devel-CheckLib'...
$ git fetch origin 98ad0abc28752bb1b70ffef2b7c6e7db9e9f5813:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Devel-CheckLib
 * [new ref]         98ad0abc28752bb1b70ffef2b7c6e7db9e9f5813 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98ad0ab Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild