$ git clone -n https://src.fedoraproject.org/rpms/rust-rustls-webpki.git /var/lib/mock/f45-build-44592-815/root/chroot_tmpdir/scmroot/rust-rustls-webpki
Cloning into '/var/lib/mock/f45-build-44592-815/root/chroot_tmpdir/scmroot/rust-rustls-webpki'...
$ git fetch origin bceb90897162487354e42b9a4284dfe1c6072e35:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rustls-webpki
 * [new ref]         bceb90897162487354e42b9a4284dfe1c6072e35 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bceb908 Update to version 0.103.15; Fixes RHBZ#2521132