$ git clone -n https://src.fedoraproject.org/rpms/rust-alacritty.git /var/lib/mock/f41-build-861634-169925/root/chroot_tmpdir/scmroot/rust-alacritty
Cloning into '/var/lib/mock/f41-build-861634-169925/root/chroot_tmpdir/scmroot/rust-alacritty'...
$ git fetch origin 672e3c451dd272855f4c4b66d21645aac9bbf2e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-alacritty
 * [new ref]         672e3c451dd272855f4c4b66d21645aac9bbf2e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 672e3c4 Update to 0.14.0 (rhbz#2321218)