$ git clone -n https://src.fedoraproject.org/rpms/gnome-chemistry-utils.git /var/lib/mock/f40-build-2263188-54526/root/chroot_tmpdir/scmroot/gnome-chemistry-utils
Cloning into '/var/lib/mock/f40-build-2263188-54526/root/chroot_tmpdir/scmroot/gnome-chemistry-utils'...
$ git fetch origin 4aa102717c266a56adb01a85a7feedf17aebdd82:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-chemistry-utils
 * [new ref]         4aa102717c266a56adb01a85a7feedf17aebdd82 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4aa1027 Switch to SPDX license identifier