$ git clone -n https://src.fedoraproject.org/rpms/rust-xcursor.git /var/lib/mock/f45-build-46227-832/root/chroot_tmpdir/scmroot/rust-xcursor
Cloning into '/var/lib/mock/f45-build-46227-832/root/chroot_tmpdir/scmroot/rust-xcursor'...
$ git fetch origin 3542d4d91bbc039c05bb715d61da0a6070d21fab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-xcursor
 * [new ref]         3542d4d91bbc039c05bb715d61da0a6070d21fab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3542d4d Update to version 0.3.11; Fixes RHBZ#2509754