$ git clone -n https://src.fedoraproject.org/rpms/rust-termcolor.git /var/lib/mock/f40-build-2251292-54125/root/chroot_tmpdir/scmroot/rust-termcolor
Cloning into '/var/lib/mock/f40-build-2251292-54125/root/chroot_tmpdir/scmroot/rust-termcolor'...
$ git fetch origin 980f8b5ec271d74e13a3895d9702a72ba9264bde:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-termcolor
 * [new ref]         980f8b5ec271d74e13a3895d9702a72ba9264bde -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 980f8b5 Update to version 1.4.1; Fixes RHBZ#2257699