$ git clone -n https://src.fedoraproject.org/rpms/perl-CGI-Application-PSGI.git /var/lib/mock/f45-build-21940-588/root/chroot_tmpdir/scmroot/perl-CGI-Application-PSGI
Cloning into '/var/lib/mock/f45-build-21940-588/root/chroot_tmpdir/scmroot/perl-CGI-Application-PSGI'...
$ git fetch origin 7cb4e7b4ef5c6e890ead6398792210a82a86c3b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CGI-Application-PSGI
 * [new ref]         7cb4e7b4ef5c6e890ead6398792210a82a86c3b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7cb4e7b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild