$ git clone -n https://src.fedoraproject.org/rpms/rust-rustls-webpki.git /var/lib/mock/f39-build-1569527-37712/root/chroot_tmpdir/scmroot/rust-rustls-webpki
Cloning into '/var/lib/mock/f39-build-1569527-37712/root/chroot_tmpdir/scmroot/rust-rustls-webpki'...
$ git fetch origin fbd6258d6a9f40698363d9119b1d1445f1166002:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rustls-webpki
 * [new ref]         fbd6258d6a9f40698363d9119b1d1445f1166002 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fbd6258 Update to version 0.101.7; Fixes RHBZ#2219642