$ git clone -n https://src.fedoraproject.org/rpms/perl-POE-Component-Resolver.git /var/lib/mock/f45-build-25537-611/root/chroot_tmpdir/scmroot/perl-POE-Component-Resolver
Cloning into '/var/lib/mock/f45-build-25537-611/root/chroot_tmpdir/scmroot/perl-POE-Component-Resolver'...
$ git fetch origin 4e38a86ad97bb12a5047d484d866e97fdbbec4a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-POE-Component-Resolver
 * [new ref]         4e38a86ad97bb12a5047d484d866e97fdbbec4a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e38a86 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild