$ git clone -n https://src.fedoraproject.org/rpms/rust-webpki-roots0.25.git /var/lib/mock/f45-build-46176-831/root/chroot_tmpdir/scmroot/rust-webpki-roots0.25
Cloning into '/var/lib/mock/f45-build-46176-831/root/chroot_tmpdir/scmroot/rust-webpki-roots0.25'...
$ git fetch origin df6aac5500d49b642d0caeefdfe75bda2515bb58:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-webpki-roots0.25
 * [new ref]         df6aac5500d49b642d0caeefdfe75bda2515bb58 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df6aac5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild