Fix: calfw-org: Ensure that string-match does not get nil input #155
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With the following customization:
M-x cfw:open-org-calendar
fails to render. This happens because the functionscfw:org-summary-format
andcfw:org-get-timerange
do not guard against text properties being nil when callingstring-match
.This commit adds the guard, which leads to the calendar rendering correctly.