$ git clone -n https://src.fedoraproject.org/rpms/rust-cursive_core.git /var/lib/mock/f41-build-side-1-2928759-35102/root/chroot_tmpdir/scmroot/rust-cursive_core
Cloning into '/var/lib/mock/f41-build-side-1-2928759-35102/root/chroot_tmpdir/scmroot/rust-cursive_core'...
$ git fetch origin cc1b35deeac9338222a15754c5a754a35bd92c98:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cursive_core
 * [new ref]         cc1b35deeac9338222a15754c5a754a35bd92c98 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc1b35d Backport upstream patch to fix tests with unicode-width >= 0.1.13