$ git clone -n https://src.fedoraproject.org/rpms/gnome-js-common.git /var/lib/mock/f42-build-3272676-41307/root/chroot_tmpdir/scmroot/gnome-js-common
Cloning into '/var/lib/mock/f42-build-3272676-41307/root/chroot_tmpdir/scmroot/gnome-js-common'...
$ git fetch origin 1e9a6024ad29fb411c53dea7f746e6ae08fabae9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-js-common
 * [new ref]         1e9a6024ad29fb411c53dea7f746e6ae08fabae9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1e9a602 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild