$ git clone -n https://src.fedoraproject.org/rpms/rust-predicates-core.git /var/lib/mock/f45-build-43994-809/root/chroot_tmpdir/scmroot/rust-predicates-core
Cloning into '/var/lib/mock/f45-build-43994-809/root/chroot_tmpdir/scmroot/rust-predicates-core'...
$ git fetch origin 15269ec8051f8058d482aed47343302e87c5abb3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-predicates-core
 * [new ref]         15269ec8051f8058d482aed47343302e87c5abb3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15269ec Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild