$ git clone -n https://src.fedoraproject.org/rpms/rust-gettext-sys.git /var/lib/mock/f45-build-45157-821/root/chroot_tmpdir/scmroot/rust-gettext-sys
Cloning into '/var/lib/mock/f45-build-45157-821/root/chroot_tmpdir/scmroot/rust-gettext-sys'...
$ git fetch origin e76c1ba70d2be4fb1b1b571480246b21ca248748:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gettext-sys
 * [new ref]         e76c1ba70d2be4fb1b1b571480246b21ca248748 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e76c1ba Update to version 0.27.0; Fixes RHBZ#2511658