$ git clone -n https://src.fedoraproject.org/rpms/rust-sequoia-git.git /var/lib/mock/f45-build-44765-816/root/chroot_tmpdir/scmroot/rust-sequoia-git
Cloning into '/var/lib/mock/f45-build-44765-816/root/chroot_tmpdir/scmroot/rust-sequoia-git'...
$ git fetch origin 11a0847c43eceb878a157c8b9dff90f726668f09:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sequoia-git
 * [new ref]         11a0847c43eceb878a157c8b9dff90f726668f09 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 11a0847 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild