$ git clone -n https://src.fedoraproject.org/rpms/rust-gdk4-x11_0.6.git /var/lib/mock/f39-build-1547201-36709/root/chroot_tmpdir/scmroot/rust-gdk4-x11_0.6
Cloning into '/var/lib/mock/f39-build-1547201-36709/root/chroot_tmpdir/scmroot/rust-gdk4-x11_0.6'...
$ git fetch origin 5915604b94f3d8b5cfdc612455e69106dedd8fae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gdk4-x11_0.6
 * [new ref]         5915604b94f3d8b5cfdc612455e69106dedd8fae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5915604 Initial import (gdk4-x11 compat package)