$ git clone -n https://src.fedoraproject.org/rpms/rust-toml_edit0.21.git /var/lib/mock/f41-build-side-1-2897340-34638/root/chroot_tmpdir/scmroot/rust-toml_edit0.21
Cloning into '/var/lib/mock/f41-build-side-1-2897340-34638/root/chroot_tmpdir/scmroot/rust-toml_edit0.21'...
$ git fetch origin 90bb78b544d17df60e72e9b5099302f823d367da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-toml_edit0.21
 * [new ref]         90bb78b544d17df60e72e9b5099302f823d367da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90bb78b compat package no longer needed