$ git clone -n https://src.fedoraproject.org/rpms/rust-deku.git /var/lib/mock/f45-build-41184-780/root/chroot_tmpdir/scmroot/rust-deku
Cloning into '/var/lib/mock/f45-build-41184-780/root/chroot_tmpdir/scmroot/rust-deku'...
$ git fetch origin 39ed1eed7ff9966f896afeacedc3aa9361aa4496:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-deku
 * [new ref]         39ed1eed7ff9966f896afeacedc3aa9361aa4496 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39ed1ee Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild