$ git clone -n https://src.fedoraproject.org/rpms/rust-comrak.git /var/lib/mock/f38-build-side-43-rust-devel-1414259-31447/root/chroot_tmpdir/scmroot/rust-comrak
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1414259-31447/root/chroot_tmpdir/scmroot/rust-comrak'...
$ git fetch origin 326400acbe55e99e780a84236f58d8897440c839:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-comrak
 * [new ref]         326400acbe55e99e780a84236f58d8897440c839 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 326400a Update to version 0.18.0; Fixes RHBZ#2094154