$ git clone -n https://src.fedoraproject.org/rpms/rust-qapi.git /var/lib/mock/f45-build-44158-811/root/chroot_tmpdir/scmroot/rust-qapi
Cloning into '/var/lib/mock/f45-build-44158-811/root/chroot_tmpdir/scmroot/rust-qapi'...
$ git fetch origin 9eacf309db8ac4b616f0d00cd4e6f8aac4cea5d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-qapi
 * [new ref]         9eacf309db8ac4b616f0d00cd4e6f8aac4cea5d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9eacf30 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild