$ git clone -n https://src.fedoraproject.org/rpms/rust-awc.git /var/lib/mock/f39-build-2272432-54915/root/chroot_tmpdir/scmroot/rust-awc
Cloning into '/var/lib/mock/f39-build-2272432-54915/root/chroot_tmpdir/scmroot/rust-awc'...
$ git fetch origin 8df8d973de6cc0199c2b097780b4f298c34fb07c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-awc
 * [new ref]         8df8d973de6cc0199c2b097780b4f298c34fb07c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8df8d97 Update to version 3.3.0; Fixes RHBZ#2255766