$ git clone -n https://src.fedoraproject.org/rpms/libgudev.git /var/lib/mock/f45-build-16269-485/root/chroot_tmpdir/scmroot/libgudev
Cloning into '/var/lib/mock/f45-build-16269-485/root/chroot_tmpdir/scmroot/libgudev'...
$ git fetch origin db70f707394233746755c2ed864adc361548f74d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgudev
 * [new ref]         db70f707394233746755c2ed864adc361548f74d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db70f70 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild