$ git clone -n https://src.fedoraproject.org/rpms/watchman.git /var/lib/mock/f38-build-side-42-init-devel-1074054-29805/root/chroot_tmpdir/scmroot/watchman
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1074054-29805/root/chroot_tmpdir/scmroot/watchman'...
$ git fetch origin ec5b781589dfc561754258f2d8e8424b8a51c120:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/watchman
 * [new ref]         ec5b781589dfc561754258f2d8e8424b8a51c120 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec5b781 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild